Is 1040 a deficient number and what is its deficiency?

Is 1040 a deficient number?

Here we will explain and calculate if 1040 is a deficient number and its deficiency if applicable.

1040 is a deficient number if the sum of its proper divisors is less than 1040.

The sum of its proper divisors is calculated as follows: 1 + 2 + 4 + 5 + 8 + 10 + 13 + 16 + 20 + 26 + 40 + 52 + 65 + 80 + 104 + 130 + 208 + 260 + 520 = 1564.

1564 is not less than 1040. Therefore, 1040 is not a deficient number.

The deficiency of 1040 is 1040 minus the sum of its proper divisors. Thus, the deficiency of 1040 is 1040 - 1564 = No Deficiency

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