999 (number)

This article is about the natural number. For the emergency telephone number, see 999 (emergency telephone number). For other uses, see 999 (disambiguation).

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

← 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
Senary	43436
Octal	17478
Duodecimal	6B312
Hexadecimal	3E716

In mathematics

• a Harshad number.
• a Kaprekar number.
• 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.