Dudeney number
A kind of number
About Dudeney number
A Dudeney number is a positive integer that equals the cube of the sum of its digits. For example, 512: 5+1+2=8, 8³=512. Named after Henry Dudeney.
Key features
- Only seven in base 10: 0, 1, 512, 4913, 5832, 17576, 19683.
- Sometimes called "perfect digit-to-cube" numbers.
Examples:
1, 512, 4913, 5832, 17576, 19683