999 (number)
999 (nine hundred ninety-nine or nine-nine-nine) is a natural number following 998 and preceding 1000.
| ||||
|---|---|---|---|---|
| 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 | |||
| Octal | 17478 | |||
| Duodecimal | 6B312 | |||
| Hexadecimal | 3E716 | |||
In mathematics
- a Harshad number.[1]
- 999 = 33 × 37, a Kaprekar number.[2]
- a repdigit in bases 10 and 36.
- a palindromic number in bases 10, 14 (51514), and 36 (RR36).
- the largest 3-digit decimal integer.
Symbology and numerology
In the numerology of the parody religion SubGenius, the number 999 represents Bob Dobbs.
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.
References
- "Sloane's A005349 : Niven (or Harshad) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2020-12-04.
- "Sloane's A006886 : Kaprekar numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-02.
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