242 (number)
242 (two hundred [and] forty-two) is the natural number following 241 and preceding 243.
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| Cardinal | two hundred forty-two | |||
| Ordinal | 242nd (two hundred forty-second) | |||
| Factorization | 2 × 112 | |||
| Greek numeral | ΣΜΒ´ | |||
| Roman numeral | CCXLII | |||
| Binary | 111100102 | |||
| Ternary | 222223 | |||
| Octal | 3628 | |||
| Duodecimal | 18212 | |||
| Hexadecimal | F216 | |||
In mathematics
242 is the smallest integer to start a run of four consecutive integers with the same number of divisors.[1][2]
242 is a nontotient since there is no integer with 242 coprimes below it.
242 is a palindrome.
In other fields
242 is also:
- part of the name of a Belgian electronic body music group called Front 242
- the number of a notable UN Security Council resolution pertaining to the Arab/Israeli conflict, United Nations Security Council Resolution 242
- Area code 242 is the area code of The Bahamas located in the North West Atlantic Ocean.
- Volvo 242 (2xx-series, 4-cylinder, 2-door) Produced from 1974–1984.
- Fiat 242, a van produced by Fiat
- the total number of Power Stars a player can collect in Super Mario Galaxy and Super Mario Galaxy 2 for the Wii.
- the orbit, in days, of Kepler-69c, a planet 70 percent larger than the size of Earth, orbiting in the habitable zone of a star similar to our sun. Astronomers are uncertain about the composition of Kepler-69c, but its orbit of 242 days around a sun-like star resembles that of our neighboring planet Venus.
- 2-4-2, a Whyte notation classification of steam locomotive.
References
- R. K. Guy Unsolved Problems in Number Theory, section B18.
- D. Wells, The Penguin Dictionary of Curious and Interesting Numbers, Penguin Books, NY, 1986: 147, 176.
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