Is 321 a deficient number and what is its deficiency?

Is 321 a deficient number?

Here we will explain and calculate if 321 is a deficient number and its deficiency if applicable.

321 is a deficient number if the sum of its proper divisors is less than 321.

The sum of its proper divisors is calculated as follows: 1 + 3 + 107 = 111.

111 is less than 321. Therefore, 321 is a deficient number.

The deficiency of 321 is 321 minus the sum of its proper divisors. Thus, the deficiency of 321 is 321 - 111 = 210

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