46 (number)

"Forty-six" redirects here. For other uses, see 46.

← 45 46 47 →
← 40 41 42 43 44 45 46 47 48 49 → List of numbers Integers ← 0 10 20 30 40 50 60 70 80 90 →
Cardinal	forty-six
Ordinal	46th (forty-sixth)
Factorization	2 × 23
Divisors	1, 2, 23, 46
Greek numeral	ΜϚ´
Roman numeral	XLVI, xlvi
Binary	1011102
Ternary	12013
Senary	1146
Octal	568
Duodecimal	3A12
Hexadecimal	2E16

46 (forty-six) is the natural number following 45 and preceding 47.

In mathematics

46 is a composite number, a centered triangular number, ^[1] and a Wedderburn-Etherington number, and an Erdős–Woods number. ^[2]

In sports

• The number of mountains in the 46 peaks of the Adirondack mountain range. People who have climbed all of them are called "forty-sixers". ^[3]
• The number 46 is used to identify Valentino Rossi. The number is retired (no longer used) in the MotoGP after Rossi's retirement in 2022.

In other fields

Flag of Oklahoma (1911–1925)

Forty-six is also:

• 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.

References

1. "Sloane's A005448 : Centered triangular numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Archived from the original on 2018-12-26. Retrieved 2016-05-30.
2. "Sloane's A059756 : Erdős-Woods numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Archived from the original on 2017-12-21. Retrieved 2016-05-30.
3. "Hiking Challenges: The Adirondack 46ers". Adirondack.net. Archived from the original on 2020-09-22. Retrieved 2020-08-23.