78 ( seventy eight ) is a natural number between 77 and 79 .
| 78 | |
|---|---|
| seventy eight | |
| ← 76 · 77 · 78 · 79 · 80 → | |
| Factorization | 2 · 3 · 13 |
| Roman notation | LXXVIII |
| Binary | 1001110 |
| Octal | 116 |
| Hexadecimal | 4E |
Content
In Math
- 12th triangular number . ↓ 66 , ↑ 91
- The smallest number that can be represented as the sum of two primes in seven different ways, up to the order of the terms (5 + 73, 7 + 71, 11 + 67, 17 + 61, 19 + 59, 31 + 47, 37 + 41) . ↓ 60 , ↑ 84
- The shortest solution to the initial configuration of “ spots ” turned by 180 ° contains 78 movements of individual tiles [1] (any configuration can be solved in no more than 80 moves [1] [2] .
In science
- Atomic number of platinum .
In other areas
- 78 year , 78 year BC e. 1978
- 78xx Series Chips
- ASCII - character code " N ".
- 78 - The code of the subject of the Russian Federation and the Code of the State Traffic Safety Inspectorate-GAI of St. Petersburg .
- Nitrogen makes up 78 volume percent of the Earth’s atmosphere .
- 78 - a regional Russian television channel broadcasting in St. Petersburg and the Leningrad region. Belongs to the Izvestia Information Center.
- 78 cards in the tarot deck.
- 78 revolutions per minute - the rotation frequency of one of the formats of the record .
Notes
- ↑ 1 2 Filip RW Karlemo , Patric RJ Östergård. On Sliding Block Puzzles (English) // Journal of Combinatorial Mathematics and Combinatorial Computing. - 2000.
- ↑ A. Brüngger , A. Marzetta , K. Fukuda and J. Nievergelt , The parallel search bench ZRAM and its applications , Annals of Operations Research 90 (1999), pp. 45-63.