Is 1320 a deficient number and what is its deficiency?

Is 1320 a deficient number?

Here we will explain and calculate if 1320 is a deficient number and its deficiency if applicable.

1320 is a deficient number if the sum of its proper divisors is less than 1320.

The sum of its proper divisors is calculated as follows: 1 + 2 + 3 + 4 + 5 + 6 + 8 + 10 + 11 + 12 + 15 + 20 + 22 + 24 + 30 + 33 + 40 + 44 + 55 + 60 + 66 + 88 + 110 + 120 + 132 + 165 + 220 + 264 + 330 + 440 + 660 = 3000.

3000 is not less than 1320. Therefore, 1320 is not a deficient number.

The deficiency of 1320 is 1320 minus the sum of its proper divisors. Thus, the deficiency of 1320 is 1320 - 3000 = No Deficiency

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