Is 1251 a deficient number and what is its deficiency?

Is 1251 a deficient number?

Here we will explain and calculate if 1251 is a deficient number and its deficiency if applicable.

1251 is a deficient number if the sum of its proper divisors is less than 1251.

The sum of its proper divisors is calculated as follows: 1 + 3 + 9 + 139 + 417 = 569.

569 is less than 1251. Therefore, 1251 is a deficient number.

The deficiency of 1251 is 1251 minus the sum of its proper divisors. Thus, the deficiency of 1251 is 1251 - 569 = 682

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