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What is the ones digit of 1^2009 + 2^2009 + 3^2009 + ... + 2009^2009 + 2010^2009 + 2011^2009 + 2012^2009?

 
 Nov 20, 2021
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sum_(n=1)^2012 n^2009 = 2508173028 - these are the last 10 digits.

 
 Nov 21, 2021

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