Is 1919 a deficient number and what is its deficiency?

Is 1919 a deficient number?

Here we will explain and calculate if 1919 is a deficient number and its deficiency if applicable.

1919 is a deficient number if the sum of its proper divisors is less than 1919.

The sum of its proper divisors is calculated as follows: 1 + 19 + 101 = 121.

121 is less than 1919. Therefore, 1919 is a deficient number.

The deficiency of 1919 is 1919 minus the sum of its proper divisors. Thus, the deficiency of 1919 is 1919 - 121 = 1798

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