deficient number
noun Mathematics.
a positive number that is greater than the sum of all positive integers that are submultiples of it, as 10, which is greater than the sum of 1, 2, and 5.
Words nearby deficient number
deficiency account, deficiency disease, deficiency judgment, deficiency symptom, deficient, deficient number, deficit, deficit financing, deficit spending, defier, defilade
Compare abundant number, perfect number.
Origin of deficient number
First recorded in 1720–30
Also called defective number.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019