This article may contain excessive, poor, or irrelevant examples. (March 2010)
46 ( forty-six) is the natural number following 45 and preceding 47.
In mathematics [ edit ]
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. 46 is the largest even integer that can't be expressed as a sum of two abundant numbers.
46 is the 13th
semiprime. 46 is the third semiprime with a semiprime aliquot sum. The aliquot sequence of 46 is (46,26,16,15,9,4,3,1,0).
Since it is possible to find sequences of 46 consecutive integers such that each inner member shares a factor with either the first or the last member, 46 is an
In science [ edit ]
Astronomy [ edit ]
Saros number of the solar eclipse series which began on April 1, 1371 BC and ended on May 8, 91 BC. The duration of Saros series 46 was 1280.1 years, and it contained 72 solar eclipses. [2 ]
Saros number of the lunar eclipse series which began on July 19, 1358 BC and ended on October 8, 12. The duration of Saros series 46 was 1370.5 years, and it contained 77 lunar eclipses. [3 ]
In sports [ edit ]
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
of the 46 peaks 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 [ edit ]
The total of books in the
, Old Testament Catholic version, if the Book of is counted as a book separate from the Book of Lamentations . Jeremiah The number corresponding to the word "ADAM" where A=1, D=4, M=40
(on the analogy of the numeric values of letters in ancient alphabets, such as Hebrew [4 ] and Greek [5 ] ). [6 ]
In other fields [ edit ]
Forty-six is also:
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
, starring Code 46 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 amount of human chromosomes and begins sequencing different genetic codes to finally gain control of the ship's operating system. The episode was called "Humans".
References [ edit ]
^ 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."
^ NASA Solar Eclipse Web Site: -1399 to -1300 ( 1400 BCE to 1301 BCE )
^ NASA Lunar Eclipse Web Site: -1399 to -1300 ( 1400 BCE to 1301 BCE )
^ Baker, Peter and Michael Lapidge (1995) Byrhtferth's Enchiridion. Oxford: OUP for The Early English Text Society, p.201