Is 2690 a deficient number and what is its deficiency?

Is 2690 a deficient number?

Here we will explain and calculate if 2690 is a deficient number and its deficiency if applicable.

2690 is a deficient number if the sum of its proper divisors is less than 2690.

The sum of its proper divisors is calculated as follows: 1 + 2 + 5 + 10 + 269 + 538 + 1345 = 2170.

2170 is less than 2690. Therefore, 2690 is a deficient number.

The deficiency of 2690 is 2690 minus the sum of its proper divisors. Thus, the deficiency of 2690 is 2690 - 2170 = 520

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