Is 1156 a deficient number and what is its deficiency?

Is 1156 a deficient number?

Here we will explain and calculate if 1156 is a deficient number and its deficiency if applicable.

1156 is a deficient number if the sum of its proper divisors is less than 1156.

The sum of its proper divisors is calculated as follows: 1 + 2 + 4 + 17 + 34 + 68 + 289 + 578 = 993.

993 is less than 1156. Therefore, 1156 is a deficient number.

The deficiency of 1156 is 1156 minus the sum of its proper divisors. Thus, the deficiency of 1156 is 1156 - 993 = 163

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