188 (number)

← 187 188 189 →
← 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-eight
Ordinal	188th (one hundred eighty-eighth)
Factorization	22 × 47
Divisors	1, 2, 4, 47, 94, 188
Greek numeral	ΡΠΗ´
Roman numeral	CLXXXVIII, clxxxviii
Binary	101111002
Ternary	202223
Senary	5126
Octal	2748
Duodecimal	13812
Hexadecimal	BC16

188 (one hundred [and] eighty-eight) is the natural number following 187 and preceding 189.

In mathematics

There are 188 different four-element semigroups, ^[1] and 188 ways a chess queen can move from one corner of a ${\displaystyle 4\times 4}$ board to the opposite corner by a path that always moves closer to its goal. ^[2] The sides and diagonals of a regular dodecagon form 188 equilateral triangles. ^[3]

In other fields

The number 188 figures prominently in the film The Parallel Street (1962) by German experimental film director Ferdinand Khittl  [ de ]. The opening frame of the film is just an image of this number. ^[4]

See also

• All pages with titles containing 188

References

1. Sloane, N. J. A. (ed.). "SequenceA027851(Number of nonisomorphic semigroups of order n)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
2. Sloane, N. J. A. (ed.). "SequenceA132595(Number of ways to move a chess queen from the lower left corner to square (n,n), with the queen moving only up, right, or diagonally up-right)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
3. Sloane, N. J. A. (ed.). "SequenceA238822(Number of equilateral triangles bounded by the sides and diagonals of a regular 3n-gon)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
4. Möller, Olaf (January–February 2012). "White Noise". Film Comment. 48 (1): 14–15. ProQuest   918706629.