Is 1681 a deficient number and what is its deficiency?

Is 1681 a deficient number?

Here we will explain and calculate if 1681 is a deficient number and its deficiency if applicable.

1681 is a deficient number if the sum of its proper divisors is less than 1681.

The sum of its proper divisors is calculated as follows: 1 + 41 = 42.

42 is less than 1681. Therefore, 1681 is a deficient number.

The deficiency of 1681 is 1681 minus the sum of its proper divisors. Thus, the deficiency of 1681 is 1681 - 42 = 1639

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