273 (number)

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

← 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 seventy-third)
Factorization	3 × 7 × 13
Greek numeral	ΣΟΓ´
Roman numeral	CCLXXIII
Binary	1000100012
Ternary	1010103
Senary	11336
Octal	4218
Duodecimal	1A912
Hexadecimal	11116

273 is a sphenic number, a truncated triangular pyramid number^[1] and an idoneal number. 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 kelvins. 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, N. J. A. (ed.). "Sequence A051937 (Truncated triangular pyramid numbers))". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
2. Sloane, N. J. A. (ed.). "Sequence 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.