Is 756 a deficient number and what is its deficiency?

Is 756 a deficient number?

Here we will explain and calculate if 756 is a deficient number and its deficiency if applicable.

756 is a deficient number if the sum of its proper divisors is less than 756.

The sum of its proper divisors is calculated as follows: 1 + 2 + 3 + 4 + 6 + 7 + 9 + 12 + 14 + 18 + 21 + 27 + 28 + 36 + 42 + 54 + 63 + 84 + 108 + 126 + 189 + 252 + 378 = 1484.

1484 is not less than 756. Therefore, 756 is not a deficient number.

The deficiency of 756 is 756 minus the sum of its proper divisors. Thus, the deficiency of 756 is 756 - 1484 = No Deficiency

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