Is 215 a deficient number and what is its deficiency?

Is 215 a deficient number?

Here we will explain and calculate if 215 is a deficient number and its deficiency if applicable.

215 is a deficient number if the sum of its proper divisors is less than 215.

The sum of its proper divisors is calculated as follows: 1 + 5 + 43 = 49.

49 is less than 215. Therefore, 215 is a deficient number.

The deficiency of 215 is 215 minus the sum of its proper divisors. Thus, the deficiency of 215 is 215 - 49 = 166

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