999 (number)

999 (nine hundred ninety-nine or nine-nine-nine) is a natural number following 998 and preceding 1000.

Short description: Natural number

| <- 998 | 999 |  1000 ->

|
|

List of numbers — Integers

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

Cardinal| Nine hundred [and] ninety-nine
Ordinal| 999th
(Nine hundred [and] ninety-ninth)
Factorization| 33 × 37
Divisors| 1, 3, 9, 27, 37, 111, 333, 999
Greek numeral| ϠϞΘ´
Roman numeral| CMXCIX
Binary| 11111001112
Ternary| 11010003
Quaternary| 332134
Quinary| 124445
Senary| 43436
Octal| 17478
Duodecimal| 6B312
Hexadecimal| 3E716
Vigesimal| 29J20
Base 36| RR36

## In mathematics

* [math]\displaystyle{ 999=3^{3}\times 37 }[/math], a Kaprekar number.[1]
* a repdigit in decimal and hexatridecimal.
* a palindromic number in bases 10, 14 (51514), and 36 (RR36).
* the largest 3-digit decimal integer.
* the largest number in English not containing the letter 'o' in its name, when using short scale.
* A base-10 Harshad number because [math]\displaystyle{ \frac{999}{(9+9+9)} = 37 }[/math], a whole number

## Other fields

* In some parts of the world, such as the UK and Commonwealth countries, 999 (pronounced as 9-9-9) is the emergency telephone number.
* 999 was a London punk band active during the 1970s.
* 999 is also the short name for the visual novel Nine Hours, Nine Persons, Nine Doors.
* 999 is the last 3 digit number.

## References

1. ↑ "Sloane's A006886 : Kaprekar numbers". OEIS Foundation. https://oeis.org/A006886.

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/999 (number). Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=999_(number)&oldid=3378752"