Is 1243 a deficient number and what is its deficiency?

Is 1243 a deficient number?

Here we will explain and calculate if 1243 is a deficient number and its deficiency if applicable.

1243 is a deficient number if the sum of its proper divisors is less than 1243.

The sum of its proper divisors is calculated as follows: 1 + 11 + 113 = 125.

125 is less than 1243. Therefore, 1243 is a deficient number.

The deficiency of 1243 is 1243 minus the sum of its proper divisors. Thus, the deficiency of 1243 is 1243 - 125 = 1118

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