188 (number)
| ||||
|---|---|---|---|---|
| Cardinal | one hundred eighty-eight | |||
| Ordinal | 188th (one hundred eighty-eighth) | |||
| Factorization | 22 × 47 | |||
| Greek numeral | ΡΠΗ´ | |||
| Roman numeral | 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
[edit]There are 188 different four-element semigroups,[1] and 188 ways a chess queen can move from one corner of a 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
[edit]The number 188 figures prominently in the film The Parallel Street (1962) by German experimental film director Ferdinand Khittl. The opening frame of the film is just an image of this number.[4]
See also
[edit]References
[edit]- ^ Sloane, N. J. A. (ed.). "Sequence A027851 (Number of nonisomorphic semigroups of order n)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Sloane, N. J. A. (ed.). "Sequence A132595 (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.
- ^ Sloane, N. J. A. (ed.). "Sequence A238822 (Number of equilateral triangles bounded by the sides and diagonals of a regular 3n-gon)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Möller, Olaf (January–February 2012). "White Noise". Film Comment. 48 (1): 14–15. ProQuest 918706629.
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