The book is now available! 270558989
(another Prime Pages' Curiosity)
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+ pi(270558989) = 2^7 + 7^7 + 0^7 + 5^7 + 5^7 + 8^7 + 9^7 + 8^7 + 9^7. It is the largest number with this property. [Gupta]

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