Is 2157 a deficient number and what is its deficiency?

Is 2157 a deficient number?

Here we will explain and calculate if 2157 is a deficient number and its deficiency if applicable.

2157 is a deficient number if the sum of its proper divisors is less than 2157.

The sum of its proper divisors is calculated as follows: 1 + 3 + 719 = 723.

723 is less than 2157. Therefore, 2157 is a deficient number.

The deficiency of 2157 is 2157 minus the sum of its proper divisors. Thus, the deficiency of 2157 is 2157 - 723 = 1434

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