Is 2155 a deficient number and what is its deficiency?

Is 2155 a deficient number?

Here we will explain and calculate if 2155 is a deficient number and its deficiency if applicable.

2155 is a deficient number if the sum of its proper divisors is less than 2155.

The sum of its proper divisors is calculated as follows: 1 + 5 + 431 = 437.

437 is less than 2155. Therefore, 2155 is a deficient number.

The deficiency of 2155 is 2155 minus the sum of its proper divisors. Thus, the deficiency of 2155 is 2155 - 437 = 1718

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