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

Last updated March 28, 2025

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

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]

References

↑ Sloane, N. J. A. (ed.). "SequenceA051937(Truncated triangular pyramid numbers))". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
↑ Sloane, N. J. A. (ed.). "SequenceA001764(Binomial(3n,n)/(2n+1) (enumerates ternary trees and also noncrossing trees))". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.

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[1] Sloane, N. J. A. (ed.). "SequenceA051937(Truncated triangular pyramid numbers))". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.

[2] Sloane, N. J. A. (ed.). "SequenceA001764(Binomial(3n,n)/(2n+1) (enumerates ternary trees and also noncrossing trees))". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.

[1]

[2]