Is 681 a deficient number and what is its deficiency?

Is 681 a deficient number?

Here we will explain and calculate if 681 is a deficient number and its deficiency if applicable.

681 is a deficient number if the sum of its proper divisors is less than 681.

The sum of its proper divisors is calculated as follows: 1 + 3 + 227 = 231.

231 is less than 681. Therefore, 681 is a deficient number.

The deficiency of 681 is 681 minus the sum of its proper divisors. Thus, the deficiency of 681 is 681 - 231 = 450

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