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# 449177399146038697307

This number is a prime.

4 4917739914 6038697307

The second of three prime PPDI's in base 10.
The sum of each of the 21 digits, when raised to the 21^{st} power is equal to this same number.
Note the other two prime PPDI's are 28116440335967 and 35452590104031691935943. [Heinz]

(There is one curio for this number that has not yet been approved by an editor.)

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