Kaprekar number
- 卡布列克数（假如正整数X在n进位下的平方可以分割为二个数字，并且这二个数字相加后恰等于X，那么X就是n进位下的卡布列克数）
Kaprekar number
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abstract:
In mathematics, a Kaprekar number for a given base is a non-negative integer, the representation of whose square in that base can be split into two parts that add up to the original number again. For instance, 45 is a Kaprekar number, because 45² = 2025 and 20+25 = 45.
以上来源于:
WordNet