Is 1664 a deficient number and what is its deficiency?

Is 1664 a deficient number?

Here we will explain and calculate if 1664 is a deficient number and its deficiency if applicable.

1664 is a deficient number if the sum of its proper divisors is less than 1664.

The sum of its proper divisors is calculated as follows: 1 + 2 + 4 + 8 + 13 + 16 + 26 + 32 + 52 + 64 + 104 + 128 + 208 + 416 + 832 = 1906.

1906 is not less than 1664. Therefore, 1664 is not a deficient number.

The deficiency of 1664 is 1664 minus the sum of its proper divisors. Thus, the deficiency of 1664 is 1664 - 1906 = No Deficiency

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