Is 2005 a deficient number and what is its deficiency?

Is 2005 a deficient number?

Here we will explain and calculate if 2005 is a deficient number and its deficiency if applicable.

2005 is a deficient number if the sum of its proper divisors is less than 2005.

The sum of its proper divisors is calculated as follows: 1 + 5 + 401 = 407.

407 is less than 2005. Therefore, 2005 is a deficient number.

The deficiency of 2005 is 2005 minus the sum of its proper divisors. Thus, the deficiency of 2005 is 2005 - 407 = 1598

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