Is 1428 a deficient number and what is its deficiency?

Is 1428 a deficient number?

Here we will explain and calculate if 1428 is a deficient number and its deficiency if applicable.

1428 is a deficient number if the sum of its proper divisors is less than 1428.

The sum of its proper divisors is calculated as follows: 1 + 2 + 3 + 4 + 6 + 7 + 12 + 14 + 17 + 21 + 28 + 34 + 42 + 51 + 68 + 84 + 102 + 119 + 204 + 238 + 357 + 476 + 714 = 2604.

2604 is not less than 1428. Therefore, 1428 is not a deficient number.

The deficiency of 1428 is 1428 minus the sum of its proper divisors. Thus, the deficiency of 1428 is 1428 - 2604 = No Deficiency

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