Is 1421 a deficient number and what is its deficiency?

Is 1421 a deficient number?

Here we will explain and calculate if 1421 is a deficient number and its deficiency if applicable.

1421 is a deficient number if the sum of its proper divisors is less than 1421.

The sum of its proper divisors is calculated as follows: 1 + 7 + 29 + 49 + 203 = 289.

289 is less than 1421. Therefore, 1421 is a deficient number.

The deficiency of 1421 is 1421 minus the sum of its proper divisors. Thus, the deficiency of 1421 is 1421 - 289 = 1132

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