218 (number)
218 is the natural number following 217 and preceding 219.
In mathematics
- Mertens function = 3, a record high.
- 218 is nontotient and also noncototient.
- 218 is the number of inequivalent ways to color the 12 edges of a cube using at most 2 colors, where two colorings are equivalent if they differ only by a rotation of the cube.
- There are 218 nondegenerate Boolean functions of 3 variables.
- The number of surface points on a 73 cube.