274 (number)
| ||||
|---|---|---|---|---|
| Cardinal | two hundred seventy-four | |||
| Ordinal | 274th (two hundred seventy-fourth) | |||
| Factorization | 2 × 137 | |||
| Divisors | 1, 2, 137, 274 | |||
| Greek numeral | ΣΟΔ´ | |||
| Roman numeral | CCLXXIV, cclxxiv | |||
| Binary | 1000100102 | |||
| Ternary | 1010113 | |||
| Senary | 11346 | |||
| Octal | 4228 | |||
| Duodecimal | 1AA12 | |||
| Hexadecimal | 11216 | |||
274 (two hundred [and] seventy-four) is the natural number following 273 and preceding 275.
In mathematics
[edit]- 274 is an even composite number.[1]
- 274's sum of its proper divisors is 140.[2]
- The number 274 is the 13th tribonacci number. This is defined by the equations P(0)=P(1)=0 P(2)=1 and P(n)=P(n-1)+P(n-2)+P(n-3).[3]
- 274 is the sum of 5 perfect cubes. It is the sum of 2³+2³+2³+5³+5³.
- 274 is a Stirling number of the first kind which counts the number of permutations and their number of cycles.[4]
References
[edit]- ^ "Composite numbers". mathworld.wolfram.com.
- ^ "proper divisors". mathworld.wolfram.com.
- ^ "Tribonacci numbers". mathworld.wolfram.com.
- ^ "Stirling number of the first kind". mathworld.wolfram.com.