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Nine times SSD (Posted on 2015-03-30) Difficulty: 3 of 5
Determine all possible positive integers N such that:
N = 9*SSD(N), where SSD(N) denotes the sum of squares of the base ten digits of N.

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
Solutioncomputer solutionCharlie2015-03-30 22:04:20
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