how is 496 a perfect number
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because the sum of all possible factors of 496 is double the given number
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Also related to its being a perfect number, 496 is a harmonic divisornumber, since the number of proper divisors of 496 divided by the sum of the reciprocals of its divisors, 1, 2, 4, 8, 16, 31, 62, 124, 248 and 496, (the harmonic mean), yields an integer, 5 in this case. ... It is the largest happynumber less than 500
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