Is 2163 a deficient number and what is its deficiency?

Is 2163 a deficient number?

Here we will explain and calculate if 2163 is a deficient number and its deficiency if applicable.

2163 is a deficient number if the sum of its proper divisors is less than 2163.

The sum of its proper divisors is calculated as follows: 1 + 3 + 7 + 21 + 103 + 309 + 721 = 1165.

1165 is less than 2163. Therefore, 2163 is a deficient number.

The deficiency of 2163 is 2163 minus the sum of its proper divisors. Thus, the deficiency of 2163 is 2163 - 1165 = 998

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