Is 2007 a deficient number and what is its deficiency?

Is 2007 a deficient number?

Here we will explain and calculate if 2007 is a deficient number and its deficiency if applicable.

2007 is a deficient number if the sum of its proper divisors is less than 2007.

The sum of its proper divisors is calculated as follows: 1 + 3 + 9 + 223 + 669 = 905.

905 is less than 2007. Therefore, 2007 is a deficient number.

The deficiency of 2007 is 2007 minus the sum of its proper divisors. Thus, the deficiency of 2007 is 2007 - 905 = 1102

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