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Power of 2 (Posted on 2016-05-27) Difficulty: 4 of 5
Find integers N for which the sum of the digits in 2N equals N.

No Solution Yet Submitted by Ady TZIDON    
Rating: 5.0000 (1 votes)

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Solution Answers | Comment 3 of 6 |
2^5=32
2^70=1180591620717411303424


  Posted by Math Man on 2016-05-27 13:23:14
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