| ||||
---|---|---|---|---|

Cardinal | fifty-four | |||

Ordinal | 54th (fifty-fourth) | |||

Factorization | 2 × 3^{3} | |||

Divisors | 1, 2, 3, 6, 9, 18, 27, 54 | |||

Greek numeral | ΝΔ´ | |||

Roman numeral | LIV | |||

Binary | 110110_{2} | |||

Ternary | 2000_{3} | |||

Quaternary | 312_{4} | |||

Quinary | 204_{5} | |||

Senary | 130_{6} | |||

Octal | 66_{8} | |||

Duodecimal | 46_{12} | |||

Hexadecimal | 36_{16} | |||

Vigesimal | 2E_{20} | |||

Base 36 | 1I_{36} |

Look up in Wiktionary, the free dictionary.fifty-four |

**54** (**fifty-four**) is the natural number following 53 and preceding 55.

## In mathematics

**54** is a 19-gonal number.^{[1]} Twice the third power of three, 54 is a Leyland number.^{[2]} 54 can be written as the sum of three squares in three different ways: 7^{2} + 2^{2} + 1^{2} = 6^{2} + 3^{2} + 3^{2} = 5^{2} + 5^{2} + 2^{2} = 54. It is the smallest number with this property. Like all other multiples of 6, it is a semiperfect number.^{[3]}

In base 10, 54 is a Harshad number.^{[4]}

The Holt graph has 54 edges.

The sine of an angle of 54 degrees is half the golden ratio.

## In science

- The atomic number of xenon is 54.

### Astronomy

- Messier object M54, a magnitude 8.5 globular cluster in the constellation Sagittarius
- The New General Catalogue object NGC 54, a spiral galaxy in the constellation Cetus
- The number of years in three Saros cycles of eclipses of the sun and moon is known as a
**Triple Saros**or*exeligmos*(*Greek*: "turn of the wheel").

## In sports

- Fewest points in an NBA playoff game: Chicago (96), Utah (54), June 7, 1998
- The New York Rangers won the Stanley Cup in 1994, 54 years after their previous Cup win. It is the longest drought in the trophy's history.
- For years car number 54 was driven by NASCAR's Lennie Pond. More recently, it is known as the Nationwide Series car number for Kyle Busch.
- A score of 54 in golf is colloquially referred to as a perfect round. This score has never been achieved in competition.
- The number used when a player is defeated 3 games in a row in racquetball.

## In other fields

**54** is also:

- The number of milligrams of caffeine in 12 ounces of Mountain Dew.
- +54 The code for international direct dial phone calls to Argentina
- A broadcast television channel number
*54*, a 1998 film about Studio 54 starring Ryan Phillippe, Mike Myers, and Salma Hayek*54*, a novel by the Wu Ming collective of authors- In the title of a 1960s television show
*Car 54, Where Are You?* - The number of the French department Meurthe-et-Moselle
- New York's Warwick New York Hotel is on West 54th Street
- The number of cards in a deck of playing cards, if two jokers are included
- The number of countries in Africa
- Year identifier used on motor vehicles registered in the UK between 1 September 2004 and 28 February 2005
- Six by nine, the incorrect Answer to the Ultimate Question of Life, the Universe, and Everything

## References

**^**"Sloane's A051871 : 19-gonal numbers".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-05-30.**^**"Sloane's A076980 : Leyland numbers".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-05-30.**^**"Sloane's A005835 : Pseudoperfect (or semiperfect) numbers".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-05-30.**^**"Sloane's A005349 : Niven (or Harshad) numbers".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-05-30.