46 (number)
Encyclopedia : 4 : 46 : 46N : 46 (number)
46 (forty-six) is the natural number following 45 and preceding 47.
| Cardinal | 46 forty-six |
| Ordinal | 46th forty-sixth |
| Factorization | [2\cdot 23] |
| Roman numeral | XLVI |
| Binary | 101110 |
| Hexadecimal | 2E |
In mathematics
Forty-six is a Wedderburn-Etherington number, an enneagonal number and a centered triangular number. It is the sum of the totient function for the first twelve integers.
In science
- The atomic number of palladium
- The number of human chromosomes
Astronomy
- Messier object M46, a magnitude 6.5 open cluster in the constellation Puppis
- The New General Catalogue [object] NGC 46, a star in the constellation Pisces
- The Saros [number] of the solar eclipse series which began on -1371 April 1 and ended on -91 May 8. The duration of Saros series 46 was 1280.1 years, and it contained 72 solar eclipses.
- The Saros [number] of the lunar eclipse series which began on -1358 July 19 and ended on 12 October 8. The duration of Saros series 46 was 1370.5 years, and it contained 77 lunar eclipses.
In sports
- The number of mountains in the 46 peaks of the Adirondak mountain range. People who have climbed all of them are called "forty-sixers"; there is also an unofficial 47th peak.
- Valentino Rossi's race number in the MotoGP motorcycle world championship.
- The name of a defensive scheme used in American football; see 46 defense.
In other fields
Forty-six is also:- The total of books in the Old Testament of the Holy Bible in the Catholic version if the Book of Lamentations is counted as a book separate from the Book of Jeremiah.
- In Psalm 46 in the King James Bible, the 46th word from the beginning is "shake" and the 46th word from the end is "spear"; at the time of publication of the King James Bible, Shakespeare was 46 years old.
- The code for international direct dial phone calls to Sweden.
- Part of the title Forty-Six Lives, a translation by Henry Parker and Lord Morley of Boccaccio's play De claris mulieribus.
- The number of samurai, out of 47, who carried out the attack in the historical Ako vendetta; sometimes referred to as the 46 Ronins to discount the one samurai forced to turn back.
- In the title of the movie Code 46, starring Tim Robbins and Samantha Morton.
- The year AD 46, 46 BC, and 1946.
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