218 (number)

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

← 217 218 219 →
← 210 211 212 213 214 215 216 217 218 219 → List of numbers Integers ← 0 100 200 300 400 500 600 700 800 900 →
Cardinal	two hundred eighteen
Ordinal	218th (two hundred eighteenth)
Factorization	2 × 109
Greek numeral	ΣΙΗ´
Roman numeral	CCXVIII, ccxviii
Binary	110110102
Ternary	220023
Senary	10026
Octal	3328
Duodecimal	16212
Hexadecimal	DA16

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]

See also

• The years 218 and 218 BC