English Dictionary

Kaprekar number

noun

(mathematics) A non-negative integer, the representation of whose square in its base can be split into two parts that add up to itself (such as 297, whose square, 88209, can be split into 88 and 209, totalling 297).

A Kaprekar number is a non-negative integer that, when its square is divided into two parts, the sum of the parts is equal to the original number.

意味（1）

(mathematics) A non-negative integer, the representation of whose square in its base can be split into two parts that add up to itself (such as 297, whose square, 88209, can be split into 88 and 209, totalling 297).