Is 1540 a deficient number and what is its deficiency?

Is 1540 a deficient number?

Here we will explain and calculate if 1540 is a deficient number and its deficiency if applicable.

1540 is a deficient number if the sum of its proper divisors is less than 1540.

The sum of its proper divisors is calculated as follows: 1 + 2 + 4 + 5 + 7 + 10 + 11 + 14 + 20 + 22 + 28 + 35 + 44 + 55 + 70 + 77 + 110 + 140 + 154 + 220 + 308 + 385 + 770 = 2492.

2492 is not less than 1540. Therefore, 1540 is not a deficient number.

The deficiency of 1540 is 1540 minus the sum of its proper divisors. Thus, the deficiency of 1540 is 1540 - 2492 = No Deficiency

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