Is 1311 a deficient number and what is its deficiency?

Is 1311 a deficient number?

Here we will explain and calculate if 1311 is a deficient number and its deficiency if applicable.

1311 is a deficient number if the sum of its proper divisors is less than 1311.

The sum of its proper divisors is calculated as follows: 1 + 3 + 19 + 23 + 57 + 69 + 437 = 609.

609 is less than 1311. Therefore, 1311 is a deficient number.

The deficiency of 1311 is 1311 minus the sum of its proper divisors. Thus, the deficiency of 1311 is 1311 - 609 = 702

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