Is 903 a deficient number and what is its deficiency?

Is 903 a deficient number?

Here we will explain and calculate if 903 is a deficient number and its deficiency if applicable.

903 is a deficient number if the sum of its proper divisors is less than 903.

The sum of its proper divisors is calculated as follows: 1 + 3 + 7 + 21 + 43 + 129 + 301 = 505.

505 is less than 903. Therefore, 903 is a deficient number.

The deficiency of 903 is 903 minus the sum of its proper divisors. Thus, the deficiency of 903 is 903 - 505 = 398

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