Is 279 a deficient number and what is its deficiency?

Is 279 a deficient number?

Here we will explain and calculate if 279 is a deficient number and its deficiency if applicable.

279 is a deficient number if the sum of its proper divisors is less than 279.

The sum of its proper divisors is calculated as follows: 1 + 3 + 9 + 31 + 93 = 137.

137 is less than 279. Therefore, 279 is a deficient number.

The deficiency of 279 is 279 minus the sum of its proper divisors. Thus, the deficiency of 279 is 279 - 137 = 142

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