mersenneforum.org Sum of digits of x and powers of x
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 2022-11-07, 21:51 #12 mart_r     Dec 2008 you know...around... 35016 Posts Take it, it's free While this thread is still on the front page, let me drop this number here: Code: 977501592599998899778899999999987869899997877899798979989989676889999889999899775899989798999998789769998994897988599999999988989899879989699897999798898997599889876898998999994977897978999988999939998887 It's a 204-digit prime number whose digital sum (1651) is larger than the digital sum of its cube (1639). I found it less than a day after my last post in this thread.

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