# 218 (number)

| ||||
---|---|---|---|---|

Cardinal | two hundred eighteen | |||

Ordinal |
218th (two hundred and eighteenth) | |||

Factorization | 2 × 109 | |||

Roman numeral | CCXVIII | |||

Binary |
11011010_{2} | |||

Ternary |
22002_{3} | |||

Quaternary |
3122_{4} | |||

Quinary |
1333_{5} | |||

Senary |
1002_{6} | |||

Octal |
332_{8} | |||

Duodecimal |
162_{12} | |||

Hexadecimal |
DA_{16} | |||

Vigesimal |
AI_{20} | |||

Base 36 |
62_{36} |

**218** (**two hundred [and] eighteen**) is the natural number following 217 and preceding 219.

- 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.
- § 218 of the German StGB legal code is the section that relates to abortion.
- As of 2008, 218 votes are required in the US House of Representatives to achieve a majority.
^{[3]} - .218 Bee, firearm cartridge
- The years 218 and 218 BC

## References

- ↑ "Sloane's A051400 : Smallest value of x such that M(x)=n, where M() is Mertens's function".
*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. - ↑ "Sloane's A058763 : Integers which are neither totient nor cototient".
*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. - ↑ http://news.bbc.co.uk/2/hi/americas/7652112.stm

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