Is 2178 a deficient number and what is its deficiency?

Is 2178 a deficient number?

Here we will explain and calculate if 2178 is a deficient number and its deficiency if applicable.

2178 is a deficient number if the sum of its proper divisors is less than 2178.

The sum of its proper divisors is calculated as follows: 1 + 2 + 3 + 6 + 9 + 11 + 18 + 22 + 33 + 66 + 99 + 121 + 198 + 242 + 363 + 726 + 1089 = 3009.

3009 is not less than 2178. Therefore, 2178 is not a deficient number.

The deficiency of 2178 is 2178 minus the sum of its proper divisors. Thus, the deficiency of 2178 is 2178 - 3009 = No Deficiency

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