22783...87723 (38-digits)

This number is a prime.

                                   22783523 7623719137 1557413740 0777787723

+ The sum of first two dozens of powers with bases the first composite numbers, i.e., 4, 6, 8, ..34, 35, 36 and exponents the first successive positive integers, 1, 2, 3, …, 22, 23, 24. [Loungrides]

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