190296921999337

This number is a prime.

                                                            19029 6921999337

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This prime was obtained by summing all of the divisors of 20^20 after reversing them. Let srd(n) denote the sum of the reversed divisors of n. When n=2, 20, and 22, srd(n^n) is prime, with no more values known. [Earls]

Submitted: 2005-05-02 15:47:54;   Last Modified: 2008-01-30 17:28:00.
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