Is 1144 a deficient number and what is its deficiency?

Is 1144 a deficient number?

Here we will explain and calculate if 1144 is a deficient number and its deficiency if applicable.

1144 is a deficient number if the sum of its proper divisors is less than 1144.

The sum of its proper divisors is calculated as follows: 1 + 2 + 4 + 8 + 11 + 13 + 22 + 26 + 44 + 52 + 88 + 104 + 143 + 286 + 572 = 1376.

1376 is not less than 1144. Therefore, 1144 is not a deficient number.

The deficiency of 1144 is 1144 minus the sum of its proper divisors. Thus, the deficiency of 1144 is 1144 - 1376 = No Deficiency

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