Is 4191 a deficient number and what is its deficiency?

Is 4191 a deficient number?

Here we will explain and calculate if 4191 is a deficient number and its deficiency if applicable.

4191 is a deficient number if the sum of its proper divisors is less than 4191.

The sum of its proper divisors is calculated as follows: 1 + 3 + 11 + 33 + 127 + 381 + 1397 = 1953.

1953 is less than 4191. Therefore, 4191 is a deficient number.

The deficiency of 4191 is 4191 minus the sum of its proper divisors. Thus, the deficiency of 4191 is 4191 - 1953 = 2238

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