46 (number)
46 (forty-six) is the natural number following 45 and preceding 47.
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| Cardinal | forty-six | |||
| Ordinal | 46th (forty-sixth) | |||
| Factorization | 2 × 23 | |||
| Divisors | 1, 2, 23, 46 | |||
| Greek numeral | ΜϚ´ | |||
| Roman numeral | XLVI | |||
| Binary | 1011102 | |||
| Ternary | 12013 | |||
| Quaternary | 2324 | |||
| Quinary | 1415 | |||
| Senary | 1146 | |||
| Octal | 568 | |||
| Duodecimal | 3A12 | |||
| Hexadecimal | 2E16 | |||
| Vigesimal | 2620 | |||
| Base 36 | 1A36 | |||
In mathematics
Forty-six is a Wedderburn-Etherington number,[1] an enneagonal number[2] and a centered triangular number.[3] It is the sum of the totient function for the first twelve integers.[4] 46 is the largest even integer that cannot be expressed as a sum of two abundant numbers. It is also the sixteenth semiprime.
Since it is possible to find sequences of 46+1 consecutive integers such that each inner member shares a factor with either the first or the last member, 46 is an Erdős–Woods number.[5]
In science
- The atomic number of palladium.
- The number of human chromosomes.[6]
- The approximate molar mass of ethanol (46.07 g mol−1)
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.
In music
- Japanese idol group franchise, Sakamichi Series, which consist of Nogizaka46, Keyakizaka46, Hinatazaka46, and Yoshimotozaka46
In sports
- Valentino Rossi, one of the most successful motorcycle riders of all time, uses 46 as his number in the MotoGP motorcycle world championship, and has been using this number in homage to his father since he started racing as a youngster.
- The number of mountains in the 46 peaks of the Adirondack mountain range. People who have climbed all of them are called "forty-sixers"; there is also an unofficial 47th peak.
- The name of a defensive scheme used in American football; see 46 defense.
In religion
- The total of books in the Old Testament, Catholic version, if the Book of Lamentations is counted as a book separate from the Book of Jeremiah.
- The number corresponding to the word "ADAM" where A=1, D=4, M=40[7] (on the analogy of the numeric values of letters in ancient alphabets, such as Hebrew[8] and Greek[9]).
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Flag of Oklahoma (1911–1925)
In other fields
Forty-six is also:
- The code for international direct dial phone calls to Sweden.
- 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.
- Several routes numbered 46 exist throughout the world.
- Because 46 in Japanese can be pronounced as "yon roku", and "yoroshiku"（よろしく） means "my best regards" in Japanese, people sometimes use 46 for greeting.
- 46 is the number of the City Chevrolet and Superflo cars driven by Cole Trickle in the movie Days of Thunder.
- The number of the French department Lot.
- 46 is the number that unlocks the Destiny spaceship on the popular Sci-Fi TV show Stargate Universe. Dr. Rush discovers that the number 46 relates to the number of human chromosomes and begins sequencing different genetic codes to finally gain control of the ship's operating system. The episode was called "Humans".
- The number depicted in the first flag of Oklahoma (replaced in 1925), signifying the fact that Oklahoma was the 46th state to join the United States.
gollark: https://github.com/joaomilho/Enterpriseyes I am an enterprise developer.
gollark: Why not write Java like Enterprise™ and make everything static methods on your main class or something?
gollark: CEASE claiming objectivity, "palaiol"ogos.
gollark: Weird structure?
gollark: I'm... actually not sure why that needs to be its own function.
References
- "Sloane's A001190 : Wedderburn-Etherington numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30.
- "Sloane's A001106 : 9-gonal (or enneagonal or nonagonal) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30.
- "Sloane's A005448 : Centered triangular numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30.
- "Sloane's A002088 : Sum of totient function". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30.
- "Sloane's A059756 : Erdős-Woods numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30.
- Barbara J. Trask, "Human genetics and disease: Human cytogenetics: 46 chromosomes, 46 years and counting" Nature Reviews Genetics 3 (2002): 769. "Human cytogenetics was born in 1956 with the fundamental, but empowering, discovery that normal human cells contain 46 chromosomes."
- Baker, Peter and Michael Lapidge (1995) Byrhtferth's Enchiridion. Oxford: OUP for The Early English Text Society, p.201
- "Archived copy". Archived from the original on 2009-06-01. Retrieved 2009-09-22.CS1 maint: archived copy as title (link)
- http://147.52.104.14/PROMWEB/ARXAIA/arxaioi_numbers.htm%5B%5D
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