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| | Notable Properties of Specific Numbers at MROB |
 | | Numbers of this form are sometimes called hyperfactorials. |
 | | The hyperfactorials are: 1, 4, 108, 27648, 86400000, 4031078400000, 3319766398771200000, 55696437941726556979200000,... |
 | | The hyperfactorials can be extended to the real numbers, the result is the K-function, which is related to Barnes' G-function, the Gamma function and the Riemann Zeta function. |
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