Is 872 a deficient number and what is its deficiency?

Is 872 a deficient number?

Here we will explain and calculate if 872 is a deficient number and its deficiency if applicable.

872 is a deficient number if the sum of its proper divisors is less than 872.

The sum of its proper divisors is calculated as follows: 1 + 2 + 4 + 8 + 109 + 218 + 436 = 778.

778 is less than 872. Therefore, 872 is a deficient number.

The deficiency of 872 is 872 minus the sum of its proper divisors. Thus, the deficiency of 872 is 872 - 778 = 94

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