Is 1443 a deficient number and what is its deficiency?

Is 1443 a deficient number?

Here we will explain and calculate if 1443 is a deficient number and its deficiency if applicable.

1443 is a deficient number if the sum of its proper divisors is less than 1443.

The sum of its proper divisors is calculated as follows: 1 + 3 + 13 + 37 + 39 + 111 + 481 = 685.

685 is less than 1443. Therefore, 1443 is a deficient number.

The deficiency of 1443 is 1443 minus the sum of its proper divisors. Thus, the deficiency of 1443 is 1443 - 685 = 758

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