The book is now available! 43
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

Single Curio View:   (Seek other curios for this number)


The largest natural number n such that the sum of the digits of n2 is not smaller than n/2. [Capelle]


  Submitted: 2009-09-18 04:54:43;   Last Modified: 2009-09-18 06:37:19.

Prime Curios! © 2000-2015 (all rights reserved)