Is 221 a deficient number and what is its deficiency?

Is 221 a deficient number?

Here we will explain and calculate if 221 is a deficient number and its deficiency if applicable.

221 is a deficient number if the sum of its proper divisors is less than 221.

The sum of its proper divisors is calculated as follows: 1 + 13 + 17 = 31.

31 is less than 221. Therefore, 221 is a deficient number.

The deficiency of 221 is 221 minus the sum of its proper divisors. Thus, the deficiency of 221 is 221 - 31 = 190

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