Is 19 a deficient number and what is its deficiency?

Is 19 a deficient number?

Here we will explain and calculate if 19 is a deficient number and its deficiency if applicable.

19 is a deficient number if the sum of its proper divisors is less than 19.

The sum of its proper divisors is calculated as follows: 1 = 1.

1 is less than 19. Therefore, 19 is a deficient number.

The deficiency of 19 is 19 minus the sum of its proper divisors. Thus, the deficiency of 19 is 19 - 1 = 18

Deficient Calculator
You can enter another number here to check if it is a deficient number:

Is 20 a deficient number?
Go here for the next number on our list. Is it deficient?