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How many qualified numbers? (Posted on 2019-04-24)

If a square number has a digit sum of 2019, that number is called a qualified number. How many qualified numbers are there?

No Solution Yet Submitted by Danish Ahmed Khan

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The digital root of 2019 is 3 and is therefore divisible by 3 but not my 9 and so can't be square, so there are no such numbers.

Posted by Charlie on 2019-04-24 11:57:48

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