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Topic: Primitive semiperfect number

	Perfect number (Site not responding. Last check: 2007-11-07)
		Thus, 6 is a perfect number, because 1, 2 and 3 are its proper positive divisors and 1 + 2 + 3 = 6.
		Numbers where the sum is less than the number itself are called deficient, and where it is greater, abundant.
		A pair of numbers which are the sum of each other's proper divisors are called amicable, and larger cycles of numbers are called sociable.
	www.sciencedaily.com /encyclopedia/perfect_number (638 words)

	Station Information - Semiperfect number
		In mathematics, a semiperfect number (also called a pseudoperfect number) is a natural number n that is equal to the sum of all or some of its proper divisors (the divisor function σ(n)).
		The first few semiperfect numbers are 6, 12, 18, 20, 24, 28, 30, 36, 40,...
		Semiperfect numbers that are equal to the sum of all their proper divisors are called perfect number; an abundant number which is not semiperfect is called a weird number.
	www.stationinformation.com /encyclopedia/s/se/semiperfect_number.html (113 words)

	Perfect number Article, Perfectnumber Information (Site not responding. Last check: 2007-11-07)
		Thus, 6 is a perfect number, because 1, 2 and 3 are its proper positive divisors and1 + 2 + 3 = 6.
		Numbers where the sum is less than the numberitself are called deficient, and where it is greater, abundant.
		A pair of numbers which are the sum of each other's proper divisorsare called amicable, and larger cycles of numbers are called sociable.
	www.anoca.org /numbers/prime/perfect_number.html (540 words)

	22 (number) -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-07)
		The number 22 is significant in many systems of (The study of the supposed occult influence of numbers on human affairs) numerology, often called the (Click link for more info and facts about Master Builder) Master Builder or Spiritual Master in Form.
		The number of letters in the (A Semitic alphabet used since the 5th century BC for writing the Hebrew language (and later for writing Yiddish and Ladino)) Hebrew alphabet.
		The number of (The enclosed land around a house or other building) yards in a (A series of (usually metal) rings or links fitted into one another to make a flexible ligament) chain.
	www.absoluteastronomy.com /encyclopedia/2/22/22_(number).htm (679 words)

	88 (number) - Wikipedia, the free encyclopedia
		Eighty-eight is a symmetrical or palindromic number, a primitive semiperfect number and an untouchable number.
		The Saros number of the solar eclipse series which began on -246 October 6 and ended on 1233 March 12.
		Further, the Saros number of the lunar eclipse series which began on 38 July 5 and ended on 1336 August 23.
	en.wikipedia.org /wiki/Eighty-eight (427 words)

	Shop Fresh : Article 'Gibbs' phase rule' (Site not responding. Last check: 2007-11-07)
		where F is the number of degrees of freedom, c is the number of components in the system, and p is the number of phases in the system.
		Gibbs' phase rule implies that the number of degrees of freedom increases as the number of components in the system increases and decreases as the number of phases increases.
		Once the regular tetrahedron is posited as a primitive beginning, a more elaborate framework of geometric relationships is defined around it, in the form of a concentric hierarchy of additional polyhedra.
	www.shop-fresh.net /DisplayArticle964980.html (979 words)

	Science Fair Projects - 104 (number)
		The Saros number of the solar eclipse series which began on 470 April 17 and ended on 1714 May 13.
		The Saros number of the lunar eclipse series which began on 465 July 24 and ended on 1781 October 20.
		The number of Symphonies written by Joseph Haydn on which numbers are agreed upon (though in fact, he wrote more: see list of symphonies by Joseph Haydn).
	www.all-science-fair-projects.com /science_fair_projects_encyclopedia/104_%28number%29 (365 words)

	CONK! Encyclopedia: List_of_recreational_number_theory_topics (Site not responding. Last check: 2007-11-07)
		This is a list of recreational number theory topics (see number theory, recreational mathematics).
		Listing here is not pejorative: many famous topics in number theory have origins in challenging problems posed purely for their own sake.
		See list of number theory topics for pages dealing with aspects of number theory with more consolidated theories.
	www.conk.com /search/encyclopedia.cgi?q=List_of_recreational_number_theory_topics (54 words)

	wikien.info: Main_Page (Site not responding. Last check: 2007-11-07)
		The number is a four-digit number identifying the type of produce, sometimes including the variety.
		In mathematics, a primeval number is a natural number n for which the number of prime numbers which can be obtained by permuting all or some of its digits (in base 10) is larger than the number of primes obtainable in the same way for any smaller natural number.
		In number theory, the prime factors of a positive integer are the prime numbers that divide into that integer exactly, without leaving a remainder.
	pardus.info /browse.php?title=P/PR/PRI (11193 words)

	104 (number) - Encyclopedia Glossary Meaning Explanation 104 (number) (Site not responding. Last check: 2007-11-07)
		One hundred four is a primitive semiperfect number and a composite number, with its divisors being 2, 4, 8, 13, 26 and 52.
		In regular geometry, 104 is the smallest number of unit line segments that can exist in a plane with four of them touching at every vertex.
		* The number of Symphonies written by Joseph Haydn on which numbers are agreed upon (though in fact, he wrote more: see list of symphonies by Joseph Haydn).
	www.encyclopedia-glossary.com /en/104-number.html (276 words)

	300 (number) - Encyclopedia, History, Geography and Biography
		It is a triangular number and the sum of a twin prime (149 + 151), as well as the sum of ten consecutive primes (13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47).
		Further, it's the area code for telephone numbers in the United States State of Maryland.
		Also, the number of days in a leap year; It's 26-gonal and 123-gonal.
	www.arikah.net /encyclopedia/300_%28number%29 (2038 words)

	70 (number) -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-07)
		Further, the Saros number of the (The earth interrupts light shining on the moon) lunar eclipse series which began on -519 June 13 and ended on (Click link for more info and facts about 761) 761 July 21.
		The number of elders assembled by Moses on God's command in the desert ((Click link for more info and facts about Holy Bible) Holy Bible, Numbers 11:16-30).
		The year AD (The cardinal number that is the product of ten and seven) 70, 70 BC, or 1970.
	www.absoluteastronomy.com /encyclopedia/7/70/70_(number).htm (587 words)

	30 (number) -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-07)
		Further, the Saros number of the (The earth interrupts light shining on the moon) lunar eclipse series which began on -1803 June 19 and ended on -487 August 18.
		The number of tracks on (Click link for more info and facts about The Beatles) The Beatles' eponymous (A book of blank pages with pockets or envelopes; for organizing photographs or stamp collections etc) album, usually known as (Click link for more info and facts about The White Album) The White Album.
		The number of (4-wheeled motor vehicle; usually propelled by an internal combustion engine) cars in the (Click link for more info and facts about Nintendo 64) Nintendo 64 game (Click link for more info and facts about F-Zero X) F-Zero X.
	www.absoluteastronomy.com /encyclopedia/3/30/30_(number).htm (914 words)

	Articles - 200 (number) (Site not responding. Last check: 2007-11-07)
		The number appears in the Padovan sequence, preceded by 86, 114, 151 (it is the sum of the first two of these).
		Â·5, harmonic divisor number, Harshad number, also the minimum number of votes to be chosen President of the United States by the U.S. Electoral College.
		The continued fraction representation of pi is [3; 7, 15, 1, 292, 1, 1, 1, 2...]; the convergent obtained by truncating before the surprisingly large term 292 yields the excellent rational approximation 355/113 to pi.
	www.izeez.com /articles/200_(number) (1616 words)

	Semiperfect number - Encyclopedia Glossary Meaning Explanation Semiperfect number (Site not responding. Last check: 2007-11-07)
		Semiperfect number - Encyclopedia Glossary Meaning Explanation Semiperfect number.
		Here you will find more informations about Semiperfect number.
		; every multiple of a semiperfect number is semiperfect, and every number of the form 2
	www.encyclopedia-glossary.com /en/Semiperfect-number.html (179 words)

	wikien.info: Main_Page (Site not responding. Last check: 2007-11-07)
		In mathematics, a semiperfect magic cube is a magic cube that is not a perfect magic cube, i.e., a magic cube for which the cross section diagonals do not necessarily sum up to the cube's magic constant.
		In mathematics, a semiperfect magic tesseract is a magic tesseract that is not a perfect magic tesseract, i.e., a magic tesseract for which the cross section diagonals do not sum up to the tesseract's magic constant.
		Suppose E is an elliptic curve defined over the rational number field Q. It is known that there is a finite, non-empty set of prime numbers p, for which E has..
	pardus.info /browse.php?title=S/SE/SEM (7846 words)

	guinea.ca - Abundant Numbers (Site not responding. Last check: 2007-11-07)
		Abundant Number -- from MathWorld Abundant Number -- from MathWorld An abundant number is an integer n which is not a perfect number and for which s(n) \equiv \sigma(n)-n > n, where \sigma...
		A number is abundant if the sum of its proper divisors is greater than the...
		Growing numbers of Americans were hungry this Thanksgiving, and the nation should do more to help them enjoy its...
	www.guinea.ca /Abundant-Numbers/reference/search (344 words)

	Number (Site not responding. Last check: 2007-11-07)
		The word ``number'' is a general term which refers to a member of a given (possibly ordered)
		Constant'' is reserved for nonintegral numbers which have a fixed value.
		Irrational Number are commonly used to refer to nonintegral quantities, however, it is not possible to be entirely consistent in nomenclature.
	mathserver.sdu.edu.cn /mathency/math/n/n207.htm (179 words)

	Semiperfect number (Site not responding. Last check: 2007-11-07)
		In mathematics, a semiperfect number orpseudoperfect number is a natural number nthat is equal to the sum of all or some of its proper divisors.
		p for a natural number m and a primenumber p such that 2
		A semiperfect number that is equal to the sum of all its proper divisors is called a perfect number ; an abundant number which is notsemiperfect is called a weird number.
	www.therfcc.org /semiperfect-number-218304.html (119 words)

	deficient number
		In mathematics, a deficient number (also sometimes called a defective number) is a number n for which the sum of all its positive divisors (including n, the divisor function, σ(n)) is less than 2n; the value 2n - σ(n) is sometimes called the deficiency of n.
		Deficient numbers were first introduced in Nicomachus' Introductio Arithmetica (circa 100).
		An infinite number of both even and odd deficient numbers exist; for example, all prime numbers, prime powers and all proper divisors of deficient or perfect numbers are deficient.
	www.fact-library.com /deficient_number.html (124 words)

	National Primitive Area (Site not responding. Last check: 2007-11-07)
		National Primitive Area is a designation for certain protected areas in the United States.
		National Primitive Areas are designated by the Chief of the United States Forest Service which is part of the Department of Agriculture.
		National Primitive Areas are administered in the same manner as National Wilderness Areas pending establishment of their suitability for inclusion in the National Wilderness Preservation System.
	www.kiwipedia.com /en/national-primitive-area.html (75 words)

	wikien.info: Main_Page (Site not responding. Last check: 2007-11-07)
		Two hundred is the smallest unprimeable number - it can not be turned into a prime number by changing just one of its digits to any other digit.
		Two hundred ten 210 = 2·3·5·7, primorial, triangular number, sum of eight consecutive primes (13 + 17 + 19 + 23 + 29 + 31 + 37 + 41), pronic number, pentagonal number, Harshad number, untouchable number.
		In the Holy Bible, the number of men rebelling against Moses, who were swallowed up by a fire.
	www.alanaditescili.net /index.php?title=200_(number) (1641 words)

	On the Number 28
		Sum of 3rd composite number & 3rd abundant number = 8 + 20 = 28
		In nuclear physics, a "magic number" is a number of nucleons such that
		number has good judgment, is inventive and a money-maker.
	www.wisdomportal.com /Numbers/28-1.html (9763 words)

	Primitive semiperfect number - TheBestLinks.com - Mathematics, Natural number, Perfect number, Divisor, ... (Site not responding. Last check: 2007-11-07)
		Primitive semiperfect number - TheBestLinks.com - Mathematics, Natural number, Perfect number, Divisor,...
		Primitive semiperfect number, Mathematics, Natural number, Perfect number...
		You can add this article to your own "watchlist" and receive e-mail notification about all changes in this page.
	www.thebestlinks.com /Primitive_semiperfect_number.html (139 words)

	Semiperfect number - TheBestLinks.com - Mathematics, Natural number, Prime number, Perfect number, ... (Site not responding. Last check: 2007-11-07)
		Semiperfect number - TheBestLinks.com - Mathematics, Natural number, Prime number, Perfect number,...
		Semiperfect number, Mathematics, Natural number, Prime number, Perfect number...
		(sequence A005835 (http://www.research.att.com/cgi-bin/access.cgi/as/njas/sequences/eisA.cgi?Anum=A005835) in OEIS); every multiple of a semiperfect number is semiperfect, and every number of the form 2
	www.thebestlinks.com /Semiperfect_number.html (176 words)

	Harmonic divisor number (Site not responding. Last check: 2007-11-07)
		Three of these listed are also perfect numbers, and like perfect numbers, harmonic divisor numbers tend to even numbers, at least in the range observed.
		In 1972, W.H. Mills has proved that besides 1, there are no odd harmonic divisor numbers with prime power factors less than 10
		For example, 496 is a harmonic divisor number because 496 divided by the sum of the reciprocals of its divisors, 1, 2, 4, 8, 16, 31, 62, 124, 248 and 496, (the harmonic mean), yields an integer, 5 in this case.
	www.mcfly.org /wik/Harmonic_divisor_number (122 words)

	Department of Mathematics and Computer Sciences (Site not responding. Last check: 2007-11-07)
		Beller, E. The Number of Verses in the Bible According to the Baraita in Kiddushin 30a [in Hebrew].
		Roichman, Y. On the Achromatic Number of Hypercubes.
		Classification of algebraic surfaces, constructing new invariants of surfaces, construction of new surfaces, topology of surfaces, braid group, computation of fundamental groups of surfaces of general type; Representations of algebraic groups over finite fields.
	www.biu.ac.il /RA/www/catalog/exact/math.html (8555 words)

	bigger.ca - Deficient Number (Site not responding. Last check: 2007-11-07)
		This is a partial transcript of "Special Report With Brit Hume," March 21, 2005, that has been edited for clarity....
		The President of India is not a constitutional cipher, as is generally made out.
		Bradford County's bridges are getting older but the number of spans cl...
	www.bigger.ca /Deficient-Number/reference/search (230 words)

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