242 (number)

242 (two hundred [and] forty-two) is the natural number following 241 and preceding 243.

241 242 243
Cardinaltwo hundred forty-two
Ordinal242nd
(two hundred forty-second)
Factorization2 × 112
Greek numeralΣΜΒ´
Roman numeralCCXLII
Binary111100102
Ternary222223
Senary10426
Octal3628
Duodecimal18212
HexadecimalF216

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.

242 is the number of parallelogram polyominoes with 8 cells.[3]

References

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