Is 513 a deficient number and what is its deficiency?

Is 513 a deficient number?

Here we will explain and calculate if 513 is a deficient number and its deficiency if applicable.

513 is a deficient number if the sum of its proper divisors is less than 513.

The sum of its proper divisors is calculated as follows: 1 + 3 + 9 + 19 + 27 + 57 + 171 = 287.

287 is less than 513. Therefore, 513 is a deficient number.

The deficiency of 513 is 513 minus the sum of its proper divisors. Thus, the deficiency of 513 is 513 - 287 = 226

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