186 (number)

186 (one hundred [and] eighty-six) is the natural number following 185 and preceding 187.

← 185 186 187 →
← 180 181 182 183 184 185 186 187 188 189 → List of numbers Integers ← 0 100 200 300 400 500 600 700 800 900 →
Cardinal	one hundred eighty-six
Ordinal	186th (one hundred eighty-sixth)
Factorization	2 × 3 × 31
Greek numeral	ΡΠϚ´
Roman numeral	CLXXXVI, clxxxvi
Binary	101110102
Ternary	202203
Senary	5106
Octal	2728
Duodecimal	13612
Hexadecimal	BA16

In mathematics

There is no integer with exactly 186 coprimes less than it, so 186 is a nontotient. It is also never the difference between an integer and the total of coprimes below it, so it is a noncototient.^[1]

There are 186 different pentahexes, shapes formed by gluing together five regular hexagons, when rotations of shapes are counted as distinct from each other.^[2][3]

186 is a Fine number.^[4]

See also

• All pages with titles containing 186