Is 567 a deficient number and what is its deficiency?

Is 567 a deficient number?

Here we will explain and calculate if 567 is a deficient number and its deficiency if applicable.

567 is a deficient number if the sum of its proper divisors is less than 567.

The sum of its proper divisors is calculated as follows: 1 + 3 + 7 + 9 + 21 + 27 + 63 + 81 + 189 = 401.

401 is less than 567. Therefore, 567 is a deficient number.

The deficiency of 567 is 567 minus the sum of its proper divisors. Thus, the deficiency of 567 is 567 - 401 = 166

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