243 (number)

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← 242 243 244 →
Cardinaltwo hundred forty-three
Ordinal243rd
(two hundred forty-third)
Factorization35
Greek numeralΣΜΓ´
Roman numeralCCXLIII
Binary111100112
Ternary1000003
Quaternary33034
Quinary14335
Senary10436
Octal3638
Duodecimal18312
HexadecimalF316
VigesimalC320
Base 366R36

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

In mathematics[edit]

243 is:

In other fields[edit]

243 is:

References[edit]

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