Is 216 a deficient number and what is its deficiency?

Is 216 a deficient number?

Here we will explain and calculate if 216 is a deficient number and its deficiency if applicable.

216 is a deficient number if the sum of its proper divisors is less than 216.

The sum of its proper divisors is calculated as follows: 1 + 2 + 3 + 4 + 6 + 8 + 9 + 12 + 18 + 24 + 27 + 36 + 54 + 72 + 108 = 384.

384 is not less than 216. Therefore, 216 is not a deficient number.

The deficiency of 216 is 216 minus the sum of its proper divisors. Thus, the deficiency of 216 is 216 - 384 = No Deficiency

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