This article may contain indiscriminate, excessive, or irrelevant examples. (March 2010) |

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

Cardinal | sixty-seven | |||

Ordinal | 67th (sixty-seventh) | |||

Factorization | prime | |||

Prime | 19th | |||

Divisors | 1, 67 | |||

Greek numeral | ΞΖ´ | |||

Roman numeral | LXVII | |||

Binary | 1000011_{2} | |||

Ternary | 2111_{3} | |||

Quaternary | 1003_{4} | |||

Quinary | 232_{5} | |||

Senary | 151_{6} | |||

Octal | 103_{8} | |||

Duodecimal | 57_{12} | |||

Hexadecimal | 43_{16} | |||

Vigesimal | 37_{20} | |||

Base 36 | 1V_{36} |

**67** (**sixty-seven**) is the natural number following 66 and preceding 68. It is an odd number.

## Contents

## In mathematics

**67** is:

- the 19th prime number (the next is 71).
- an irregular prime.
^{[1]} - a lucky prime.
^{[2]} - the sum of five consecutive primes (7 + 11 + 13 + 17 + 19).
- a Heegner number.
^{[3]} - a Pillai prime since 18! + 1 is divisible by 67, but 67 is not one more than a multiple of 18.
^{[4]} - palindromic in the consecutive bases 5 (232
_{5}) and 6 (151_{6}).

## In science

- The atomic number of holmium, a lanthanide.

### Astronomy

- Messier object M67, a magnitude 7.5 open cluster in the constellation Cancer.
- The New General Catalogue object NGC 67, an elliptical galaxy in the constellation Andromeda.

## In music

- "Car 67", a song by the band Driver 67
- Chicago's song "Questions 67 and 68"
- Elton John's song "Old '67" on
*The Captain & The Kid*CD, (2006) - British rap group called 67
- Rapper Drake released the song named "Star67" off his album
*If You're Reading This It's Too Late*

## Other fields

**Sixty-seven** is:

- The registry of the U.S. Navy's aircraft carrier USS
*John F. Kennedy*(CV-67), named after U.S. President John F. Kennedy. - The number of the French department Bas-Rhin.
- The number of counties in Alabama, Florida, and Pennsylvania.
- The province/traffic code of Zonguldak Province in Turkey
- In the US, *67 is a common prefix-code for blocking caller-id info on the subsequent call.

## In sports

- Buddy Arrington's best-known NASCAR car number.
- The Ottawa 67's, founded in 1967.
- The number of throws in judo.
- Pekka Koskela skated the 1000 metres in 1:07:00 (67 seconds) on 10 November 2007, a world record at the time.
- The number of the laps of the German Grand Prix since 2002 if the race was held at Hockenheimring.

## External links

Wikimedia Commons has media related to .67 (number) |

## References

**^**"Sloane's A000928 : Irregular primes".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-05-29.**^**"Sloane's A031157 : Numbers that are both lucky and prime".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-05-29.**^**"Sloane's A003173 : Heegner numbers".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-05-29.**^**"Sloane's A063980 : Pillai primes".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-05-29.