266 (two hundred [and] sixty-six) is the natural number following 265 and preceding 267.
| ||||
|---|---|---|---|---|
| Cardinal | two hundred sixty-six | |||
| Ordinal | 266th (two hundred sixty-sixth) | |||
| Factorization | 2 × 7 × 19 | |||
| Divisors | 1, 2, 7, 14, 19, 38, 133, 266 | |||
| Greek numeral | ΣΞϚ´ | |||
| Roman numeral | CCLXVI, cclxvi | |||
| Binary | 1000010102 | |||
| Ternary | 1002123 | |||
| Senary | 11226 | |||
| Octal | 4128 | |||
| Duodecimal | 1A212 | |||
| Hexadecimal | 10A16 | |||
In mathematics
edit- 266 is an even composite number with three prime factors.[1]
- 266 is a repdigit in base 11. In base 11, 266 is 222.
- 266 is a sphenic number being the product of 3 prime numbers.[2]
- 266 is a nontotient number which is an even number not in Euler’s totient function.[3]
- 266 is an inconsummate number.[4]
References
edit- ^ "Facts about the integer". Wolfram MathWorld.
- ^ "Sphenic numbers". Wolfram MathWorld.
- ^ "Nontotient numbers". Wolfram MathWorld.
- ^ "Inconsummate numbers". oeis.org.