Is 2151 a deficient number and what is its deficiency?

Is 2151 a deficient number?

Here we will explain and calculate if 2151 is a deficient number and its deficiency if applicable.

2151 is a deficient number if the sum of its proper divisors is less than 2151.

The sum of its proper divisors is calculated as follows: 1 + 3 + 9 + 239 + 717 = 969.

969 is less than 2151. Therefore, 2151 is a deficient number.

The deficiency of 2151 is 2151 minus the sum of its proper divisors. Thus, the deficiency of 2151 is 2151 - 969 = 1182

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