(mathematics) A number that represents the number of items in a pyramid having a given number of sides and layers

(physics) A quantum number related to the difference between the number of leptons and antileptons in a system

(mathematics) Any positive integer having the property that all smaller integers can be represented as sums of distinct divisors of it

(mathematics) Any integer that is the sum of n natural numbers from 1 to n.

plural of figurate number

(mathematics, number theory) A number equal to the number of dots in a geometric figure formed of dots. The series begins with unity and is formed so that subtracting each from the following, and treating the series so formed in the same way, by a continuation of the process, yields equal differences.

plural of number cruncher

Alternative spelling of number cruncher

An accountant or other person who deals with the calculation of numbers as a profession. / (computing) A program, algorithm, or hardware with a focus on numerical calculation.

plural of number-cruncher (alternative spelling of number cruncher).