Is 2821 a deficient number and what is its deficiency?

Is 2821 a deficient number?

Here we will explain and calculate if 2821 is a deficient number and its deficiency if applicable.

2821 is a deficient number if the sum of its proper divisors is less than 2821.

The sum of its proper divisors is calculated as follows: 1 + 7 + 13 + 31 + 91 + 217 + 403 = 763.

763 is less than 2821. Therefore, 2821 is a deficient number.

The deficiency of 2821 is 2821 minus the sum of its proper divisors. Thus, the deficiency of 2821 is 2821 - 763 = 2058

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