The book is now available! 98639
(another Prime Pages' Curiosity)
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98639 is the smallest non-palindromic prime p such that sigma(p) = sigma(reversal(p)). Note that the next such prime is greater than 10^8. [Firoozbakht]

 

  Submitted: 2004-08-28 08:15:14;   Last Modified: 2008-01-30 11:28:00.



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