Is 4990 a deficient number and what is its deficiency?

Is 4990 a deficient number?

Here we will explain and calculate if 4990 is a deficient number and its deficiency if applicable.

4990 is a deficient number if the sum of its proper divisors is less than 4990.

The sum of its proper divisors is calculated as follows: 1 + 2 + 5 + 10 + 499 + 998 + 2495 = 4010.

4010 is less than 4990. Therefore, 4990 is a deficient number.

The deficiency of 4990 is 4990 minus the sum of its proper divisors. Thus, the deficiency of 4990 is 4990 - 4010 = 980

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