Problem 60346. Classify numbers as abundant, deficient, or perfect

A number is perfect if the sum of its proper divisors (i.e., divisors excluding the number itself) is equal to itself. For example, 28 is perfect because 1+2+4+7+14 = 28. Cody Problems 1012, 2544, and 47458 deal with the perfect numbers.
If the sum of proper divisors is less than the number, it is called deficient, and if it is greater than the number, it is abundant. For example, 21 is deficient (1+3+7 = 11 < 21) and 24 is abundant (1+2+3+4+6+8+12 = 36).
Write a function to classify numbers as abundant, deficient, or perfect.
Solve

Solution Stats

66.67% Correct | 33.33% Incorrect
Last Solution submitted on Sep 27, 2025

Solution Comments

Show comments

Problem Recent Solvers8

Suggested Problems

More from this Author314

Problem Tags

number theory sequence

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!