218 (number)
From HandWiki
Short description: Natural number
| ||||
|---|---|---|---|---|
| Cardinal | two hundred eighteen | |||
| Ordinal | 218th (two hundred eighteenth) | |||
| Factorization | 2 × 109 | |||
| Greek numeral | ΣΙΗ´ | |||
| Roman numeral | CCXVIII | |||
| Binary | 110110102 | |||
| Ternary | 220023 | |||
| Quaternary | 31224 | |||
| Quinary | 13335 | |||
| Senary | 10026 | |||
| Octal | 3328 | |||
| Duodecimal | 16212 | |||
| Hexadecimal | DA16 | |||
| Vigesimal | AI20 | |||
| Base 36 | 6236 | |||
218 (two hundred [and] eighteen) is the natural number following 217 and preceding 219.
In mathematics
- Mertens function(218) = 3, a record high.[1]
- 218 is nontotient and also noncototient.[2]
- 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.[3]
- The number of surface points on a 73 cube.[4]
In other fields
- 218 is the current number of votes in the US House of Representatives a party or coalition needs to win in order to achieve a majority.[5]
- The years 218 and 218 BC
- Area code 218, for northern Minnesota.
References
- ↑ Sloane, N. J. A., ed. "Sequence A051400 (Smallest value of x such that M(x)=n, where M() is Mertens's function)". OEIS Foundation. https://oeis.org/A051400.
- ↑ Sloane, N. J. A., ed. "Sequence A058763 (Integers which are neither totient nor cototient)". OEIS Foundation. https://oeis.org/A058763.
- ↑ Sloane, N. J. A., ed. "Sequence A000371". OEIS Foundation. https://oeis.org/A000371. Retrieved 2022-05-10.
- ↑ Sloane, N. J. A., ed. "Sequence A005897". OEIS Foundation. https://oeis.org/A005897.
- ↑ "Why did bail-out pass this time?". 4 October 2008. http://news.bbc.co.uk/2/hi/americas/7652112.stm.
 |  |
