Is 3980 a deficient number and what is its deficiency?

Is 3980 a deficient number?

Here we will explain and calculate if 3980 is a deficient number and its deficiency if applicable.

3980 is a deficient number if the sum of its proper divisors is less than 3980.

The sum of its proper divisors is calculated as follows: 1 + 2 + 4 + 5 + 10 + 20 + 199 + 398 + 796 + 995 + 1990 = 4420.

4420 is not less than 3980. Therefore, 3980 is not a deficient number.

The deficiency of 3980 is 3980 minus the sum of its proper divisors. Thus, the deficiency of 3980 is 3980 - 4420 = No Deficiency

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