86 (number)
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| Cardinal | eighty-six | |||
| Ordinal |
86th (eighty-sixth) | |||
| Factorization | 2 × 43 | |||
| Divisors | 1, 2, 43, 86 | |||
| Greek numeral | ΠϚ´ | |||
| Roman numeral | LXXXVI | |||
| Binary | 10101102 | |||
| Ternary | 100123 | |||
| Quaternary | 11124 | |||
| Quinary | 3215 | |||
| Senary | 2226 | |||
| Octal | 1268 | |||
| Duodecimal | 7212 | |||
| Hexadecimal | 5616 | |||
| Vigesimal | 4620 | |||
| Base 36 | 2E36 | |||
86 (eighty-six) is the natural number following 85 and preceding 87.
In mathematics
86 is:
- nontotient[1] and a noncototient.[2]
- the 25th distinct semiprime and the 13th of the form (2.q).
- an Erdős–Woods number, since it is possible to find sequences of 86 consecutive integers such that each inner member shares a factor with either the first or the last member.[3]
- a happy number[4] and a self number in base 10.[5]
It appears in the Padovan sequence, preceded by the terms 37, 49, 65 (it is the sum of the first two of these).[6]
It is conjectured that 86 is the largest n for which the decimal expansion of 2n contains no 0.[7]
86 = (8 × 6 = 48) + (4 × 8 = 32) + (3 × 2 = 6). That is, 86 is equal to the sum of the numbers formed in calculating its multiplicative persistence.
In science
- 86 is the atomic number of radon.
- There are 86 metals on the modern periodic table.
In slang
To 86 something means "be out of" an item (e.g., restaurants)[8] or banned from an establishment (e.g., casino.) The origin of the phrase is unclear, although the first known recorded instance of the phrase is from a 1944 book.[9]
In other fields
Eighty-six can also refer to:
- Part of the assignation for the Toyota AE86, commonly referred to as an "eight-six".
- Toyota 86, the coupe which made by Toyota and Subaru.
- The model number of F-86 Sabre and Ilyushin Il-86 aircraft.
- The model number of CPM-86 operating system.
- Part of the model number of the x86 microprocessors.
- The band Project 86 based its name on the usage of being 86'd.
- The novel Eighty-Sixed by David B. Feinberg details life as a gay man during the AIDS epidemic in 1980s New York City.
- The principal character of the TV series, Get Smart, Maxwell Smart, had been designated Agent 86.
- American band Green Day has a song called "86".
- The number of the French department Vienne. This number is also reflected in the department's postal code and in the name of a local basketball club, Poitiers Basket 86.
- +86 is the code for international direct dial phone calls to China.
- One of five ISBN Group Identifiers for books published in Serbia.
- Chick Hicks, the main villain in the Disney-Pixar film Cars (2006), is a race car who bears the number 86. The number refers both to movie creators, Pixar's founding year, as well as the year Luxo Jr (their first short film) was released.
- An art gallery in Ventura, California displaying art pieces from such artists Billy Childish, Stacy Lande and Derek Hess; most of which include the number *86 hidden or overtly shown in the art; some of which fall under the genre of lowbrow.
- 86 is the device number for a lockout relay function in electrical engineering electrical circuit protection schemes.
- A U.S. passport applicant uses Department of State form DS-86 to cancel the application in the event of non-receipt.
- Hawk Nelson has a song called "Eighty-Six That (Anthem)" on their EP Saturday Night Action.
Cultural references
- In the 1947 song "Boogie Woogie Blue Plate" by Louis Jordan, one line is, "86 on the cherry pies."
- In the 1950s sci-fi film Forbidden Planet, paragraph 86a details the civilian evacuation procedure.
- In the 1980s musical Little Shop of Horrors, Audrey II asks Seymour to "eighty-six" people so she can feed on their blood.
See also
Notes
- ↑ Sloane, N.J.A. (ed.). "Sequence A005277 (Nontotients)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29.
- ↑ Sloane, N.J.A. (ed.). "Sequence A005278 (Noncototients)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29.
- ↑ Sloane, N.J.A. (ed.). "Sequence A059756 (Erdős-Woods numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29.
- ↑ Sloane, N.J.A. (ed.). "Sequence A007770 (Happy numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29.
- ↑ Sloane, N.J.A. (ed.). "Sequence A003052 (Self numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29.
- ↑ Sloane, N.J.A. (ed.). "Sequence A000931 (Padovan sequence)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29.
- ↑ Zumkeller, Reinhard (2013-04-30). "Sequence A007377". Online Encyclopædia of Integer Sequences. Retrieved 2014-10-16.
- ↑ "eighty-six: verb [86] - WordReference Forums". Forum.wordreference.com. Retrieved 2012-12-04.
- ↑ "Etymology of 86". snopes.com. Retrieved 2012-12-04.
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