| ||||
|---|---|---|---|---|
| Cardinal | two hundred seventy-nine | |||
| Ordinal | 279th (two hundred seventy-ninth) | |||
| Factorization | 32 × 31 | |||
| Divisors | 1, 3, 9, 31, 93, 279 | |||
| Greek numeral | ΣΟΘ´ | |||
| Roman numeral | CCLXXIX, cclxxix | |||
| Binary | 1000101112 | |||
| Ternary | 1011003 | |||
| Senary | 11436 | |||
| Octal | 4278 | |||
| Duodecimal | 1B312 | |||
| Hexadecimal | 11716 | |||
279 (two hundred [and] seventy-nine) is the natural number following 278 and preceding 280.
In mathematics
- 279 is an odd composite number with two prime factors.
- Waring’s Conjecture is g(n)=2n+⌊(3/2)n⌋-2. When 8 is plugged in for n, the result is 279. That means that any positive integer can be formed with at most 279 numbers to the 8th power.
- 279 is the smallest number whose product of digits is 7 times the sum of its digits.
- 279 can be written as the sum of 4 nonzero perfect squares.
References
- ^ "Facts about the integer". mathworld.wolfram.com.
- ^ "Waring's Problem and Conjecture". mathworld.wolfram.com.
- ^ Sloane, N. J. A. (ed.). "Sequence A004215 (Numbers that are the sum of 4 but no fewer nonzero squares)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
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