the number of parallelogram polyominoes with 6 cells.[4]
It is the sum of the
totient function for the first twelve integers.[5] 46 is the largest even integer that cannot be expressed as a sum of two
abundant numbers. It is also the sixteenth
semiprime.[6]
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.[7]
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.
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.
46 is the number that unlocks the Destiny spaceship on the 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.
^Barbara J. Trask, "Human genetics and disease: Human cytogenetics: 46 chromosomes, 46 years and counting" Nature Reviews Genetics3 (2002): 769. "Human cytogenetics was born in 1956 with the fundamental, but empowering, discovery that normal human cells contain 46 chromosomes."