243 (number)

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242 243 244
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Cardinal two hundred forty-three
Ordinal 243rd
(two hundred forty-third)
Factorization 35
Greek numeral ΣΜΓ´
Roman numeral CCXLIII, ccxliii
Binary 111100112
Ternary 1000003
Senary 10436
Octal 3638
Duodecimal 18312
Hexadecimal F316

243 (two hundred [and] forty-three) is the natural number following 242 and preceding 244.

Additionally, 243 is:

References

  1. "Sloane's A082897 : Perfect totient numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-28.