291 (number)
In this article, we will explore everything related to 291 (number). From its origins to its impact on today's society, 291 (number) has been a topic of interest to many. Throughout history, 291 (number) has played an important role in different areas, from culture to science. Knowing more about 291 (number) allows us to better understand its influence on our environment and how it has evolved over time. In addition, we will analyze its relevance today and how it continues to be a topic of debate and discussion in various areas. Read on to find out everything you need to know about 291 (number).
| ||||
|---|---|---|---|---|
| Cardinal | two hundred ninety-one | |||
| Ordinal | 291st (two hundred ninety-first) | |||
| Factorization | 3 × 97 | |||
| Divisors | 1, 3, 97, 291 | |||
| Greek numeral | ΣϞΑ´ | |||
| Roman numeral | CCXCI, ccxci | |||
| Binary | 1001000112 | |||
| Ternary | 1012103 | |||
| Senary | 12036 | |||
| Octal | 4438 | |||
| Duodecimal | 20312 | |||
| Hexadecimal | 12316 | |||
291 is the natural number following 290 and preceding 292.
In mathematics
- 291 is an odd composite number with two prime factors.[1]
- 291 is a semiprime number meaning that it has 2 prime factors.[2]
- 291 can be written as the sum of the nth prime plus n. It is the 52nd prime (239) plus 52.[3]
- 291 is one of the positions of “c” in the tribonacci word abacabaab… defined by a->ab, b->ac, c->a.[4]
- 291 is the sum of six 4th powers. It is the sum of 4⁴+2⁴+2⁴+1⁴+1⁴+1⁴.[5]
References
- ^ "Facts about the integer". mathworld.wolfram.com.
- ^ "Semiprime". mathworld.wolfram.com.
- ^ Sloane, N. J. A. (ed.). "Sequence A014688". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Sloane, N. J. A. (ed.). "Sequence A003146 (Positions of letter c in the tribonacci word abacabaabacababac... generated by a->ab, b->ac, c->a (cf. A092782))". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Sloane, N. J. A. (ed.). "Sequence A003340 (Numbers that are the sum of 6 positive 4th powers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
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