Is 615 a deficient number and what is its deficiency?

Is 615 a deficient number?

Here we will explain and calculate if 615 is a deficient number and its deficiency if applicable.

615 is a deficient number if the sum of its proper divisors is less than 615.

The sum of its proper divisors is calculated as follows: 1 + 3 + 5 + 15 + 41 + 123 + 205 = 393.

393 is less than 615. Therefore, 615 is a deficient number.

The deficiency of 615 is 615 minus the sum of its proper divisors. Thus, the deficiency of 615 is 615 - 393 = 222

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