999 (number)

Natural number From Wikipedia, the free encyclopedia

999 (nine hundred [and] ninety-nine or nine-nine-nine) is a natural number following 998 and preceding 1000. The largest 3-digit decimal integer.

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998 999 1000
CardinalNine hundred [and] ninety-nine
Ordinal999th
(Nine hundred [and] ninety-ninth)
Factorization33 × 37
Divisors1, 3, 9, 27, 37, 111, 333, 999
Greek numeralϠϞΘ´
Roman numeralCMXCIX, cmxcix
Binary11111001112
Ternary11010003
Senary43436
Octal17478
Duodecimal6B312
Hexadecimal3E716
Base 36RR36
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In mathematics

  • 999 is a Kaprekar number as its square, 999×999 = 998001, which can be broken to 998 and 1, whose sum is 999.[1]
  • 999 is a taxicab number as it is the difference between two cubes. For example, 999 can be expressed 103 - 13 = 1000 - 1 and 123 - 93 = 1728 - 729.
  • A palindromic number in bases 10, 14 (51514), and 36 (RR36).
  • The largest number in English not containing the letter 'o' in its name, when using short scale.
  • A base-10 Harshad number because , a whole number.
  • A nude number because it is divisible by each of its digits.

Other fields

  • In some parts of the world, such as the UK and Commonwealth countries, 999 (pronounced as 9-9-9) is the main emergency telephone number, it also functions in many other countries.
  • 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. It is also the last number in English written without a comma, as numbers above 999 must require a comma (e.g. numbers starting from 1,000 or more).
  • 999 is the number the late rapper Juice WRLD chose as his moto, he explains it as ”999 is 666 (the Antichrist’s number flipped upside down) to resemble taking carnality and turning it upside down turning it into spirituality.“

References

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