The book is now available! 22867524
(another Prime Pages' Curiosity)
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22867524 = pi(2!+2!+8!+6!+7!+5!+2!+4!)^2. It is the largest and second natural number with this property. [Firoozbakht]

 

  Submitted: 2009-08-11 19:04:05;   Last Modified: 2009-08-11 19:14:41.



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