231 (number)

Short description: Natural number

| <- 230  | 231 |  232 ->

|
|

← 230 231 232 233 234 235 236 237 238 239 →

List of numbers — Integers

← 0 100 200 300 400 500 600 700 800 900 →

Cardinal| two hundred thirty-one
Ordinal| 231st
(two hundred thirty-first)
Factorization| 3 × 7 × 11
Greek numeral| ΣΛΑ´
Roman numeral| CCXXXI
Binary| 111001112
Ternary| 221203
Quaternary| 32134
Quinary| 14115
Senary| 10236
Octal| 3478
Duodecimal| 17312
Hexadecimal| E716
Vigesimal| BB20
Base 36| 6F36

231 (two hundred [and] thirty-one) is the natural number following 230 and preceding 232.

Two hundred [and] thirty-one 231 = 3·7·11, sphenic number, triangular number, doubly triangular number, hexagonal number, octahedral number,[1] centered octahedral number,[2] the number of integer partitions of 16, Mertens function returns 0,[3] and is the number of cubic inches in a U.S. liquid gallon.

## References

1. ↑ "Sloane's A005900 : Octahedral numbers". OEIS Foundation. https://oeis.org/A005900.
2. ↑ "Sloane's A001845 : Centered octahedral numbers". OEIS Foundation. https://oeis.org/A001845.
3. ↑ "Sloane's A028442 : Numbers n such that Mertens' function is zero". OEIS Foundation. https://oeis.org/A028442.

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/231 (number). Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=231_(number)&oldid=318449"