Is 286 a deficient number and what is its deficiency?

Is 286 a deficient number?

Here we will explain and calculate if 286 is a deficient number and its deficiency if applicable.

286 is a deficient number if the sum of its proper divisors is less than 286.

The sum of its proper divisors is calculated as follows: 1 + 2 + 11 + 13 + 22 + 26 + 143 = 218.

218 is less than 286. Therefore, 286 is a deficient number.

The deficiency of 286 is 286 minus the sum of its proper divisors. Thus, the deficiency of 286 is 286 - 218 = 68

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