Is 387 a deficient number and what is its deficiency?

Is 387 a deficient number?

Here we will explain and calculate if 387 is a deficient number and its deficiency if applicable.

387 is a deficient number if the sum of its proper divisors is less than 387.

The sum of its proper divisors is calculated as follows: 1 + 3 + 9 + 43 + 129 = 185.

185 is less than 387. Therefore, 387 is a deficient number.

The deficiency of 387 is 387 minus the sum of its proper divisors. Thus, the deficiency of 387 is 387 - 185 = 202

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