Is 856 a deficient number and what is its deficiency?

Is 856 a deficient number?

Here we will explain and calculate if 856 is a deficient number and its deficiency if applicable.

856 is a deficient number if the sum of its proper divisors is less than 856.

The sum of its proper divisors is calculated as follows: 1 + 2 + 4 + 8 + 107 + 214 + 428 = 764.

764 is less than 856. Therefore, 856 is a deficient number.

The deficiency of 856 is 856 minus the sum of its proper divisors. Thus, the deficiency of 856 is 856 - 764 = 92

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