273 (number)

← 272 273 274 →
← 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 seventy-three
Ordinal	273rd (two hundred and seventy-third)
Factorization	3 × 7 × 13
Roman numeral	CCLXXIII
Binary	1000100012
Ternary	1010103
Quaternary	101014
Quinary	20435
Senary	11336
Octal	4218
Duodecimal	1A912
Hexadecimal	11116
Vigesimal	DD20
Base 36	7L36

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

273 is a figurate number, a truncated triangular pyramid number.^[1] There are 273 different ternary trees with five nodes.^[2]

In other fields

The zero of the Celsius temperature scale is (to the nearest whole number) 273 Kelvin. Thus, absolute zero (0 K) is approximately -273°C.^[3] The freezing temperature of water and the thermodynamic temperature of the triple point of water are both approximately 0°C or 273 K.^[4][5]

References

1. "Sloane's A051937 : Truncated triangular pyramid numbers)", The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
2. "Sloane's A001764 : Binomial(3n,n)/(2n+1) (enumerates ternary trees and also noncrossing trees)", The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
3. James Shipman, Jerry Wilson, Charles Higgins (2012), An Introduction to Physical Science (13th ed.), Cengage Learning, p. 107, ISBN 9781133104094.
4. Larry Kirkpatrick, Gregory Francis (2006), Physics: A World View (6th ed.), Cengage Learning, p. 219, ISBN 9780495010883.
5. Alphonso Hendricks, Loganathan Subramony, Charmaine Van Blerk (1999), Physics for Engineering, Juta and Company Ltd, p. 229, ISBN 9780702144080.