273 (number)

← 272 274 → 273
← 200 210 220 230 240 250 260 270 280 290 → List of numbers — Integers ← 0 100 200 300 400 500 600 700 800 900 →
Cardinal	Two hundred [and] seventy-three
Ordinal	273rd (Two hundred [and] seventy-third)
Factorization	$273 = 3 \cdot 7 \cdot 13$
Roman numeral	CCLXXIII
Binary	1000100012
Octal	4218
Duodecimal	1A912
Hexadecimal	11116

273 (two hundred [and] seventy-three, CCLXXIII) is the natural number following 272 and preceding 274.

It is a sphenic number, and a repdigit in base 9 (333), base 16 (111), base 20 (DD or 13 13), base 38 (77), and base 90 (33).

In other fields

273 is also:

• The zero of the Celsius temperature scale is (to the nearest whole number) 273 Kelvin. This corresponds with absolute zero (0 K) being approximately -273°C.
• American composer John Cage's piano composition 4′33″ consists of 273 seconds (four minutes and 33 seconds) of silence, in three movements.
• The year AD 273 and 273 BC.
• The death toll of the air crash of American Airlines Flight 191 is 273 people (271 on board,2 on ground).