Editing 83 (number)

{{Infobox number
| number = 83
| factorization = [[prime number|prime]]
| prime = 23rd
| divisor = 1, 83

}}{{Short description|Number}}
'''83''' ('''eighty-three''')  is the [[natural number]] following [[82 (number)|82]] and preceding [[84 (number)|84]].

==In mathematics==
'''83''' is:

* the sum of three consecutive primes (23 + 29 + 31).
* the sum of five consecutive primes (11 + 13 + 17 + 19 + 23).
* the 23rd [[prime number]], following [[79 (number)|79]] (of which it is also a [[cousin prime]]) and preceding [[89 (number)|89]].
* a [[Sophie Germain prime]].<ref>{{Cite web|url=https://oeis.org/A005384|title=Sloane's A005384 : Sophie Germain primes|website=The On-Line Encyclopedia of Integer Sequences|publisher=OEIS Foundation|access-date=2016-05-29}}</ref>
* a [[safe prime]].<ref>{{Cite web|url=https://oeis.org/A005385|title=Sloane's A005385 : Safe primes|website=The On-Line Encyclopedia of Integer Sequences|publisher=OEIS Foundation|access-date=2016-05-29}}</ref>
* a [[Chen prime]].<ref>{{Cite web|url=https://oeis.org/A109611|title=Sloane's A109611 : Chen primes|website=The On-Line Encyclopedia of Integer Sequences|publisher=OEIS Foundation|access-date=2016-05-29}}</ref>
* an [[Eisenstein prime]] with no imaginary part and real part of the form 3''n'' − 1.
* a [[highly cototient number]].<ref>{{Cite web|url=https://oeis.org/A100827|title=Sloane's A100827 : Highly cototient numbers|website=The On-Line Encyclopedia of Integer Sequences|publisher=OEIS Foundation|access-date=2016-05-29}}</ref>
* the number of [[Prime number|primes]] that are [[Truncatable prime|right-truncatable]].<ref>{{Cite OEIS |A024770 |Right-truncatable primes: every prefix is prime }}</ref>
* a [[super-prime]], because 23 is prime.

==In other fields==
* The eighth letter of the alphabet is H and the third letter is C, thus 83 stands for "Heil Christ," a greeting used by organizations that consider themselves also to be Christian. <ref name="adl">{{Cite web |url=http://www.adl.org/hate_symbols/numbers_83.asp |title=Hate Number Symbols: 83 - From A Visual Database of Extremist Symbols, Logos and Tattoos<!-- Bot generated title --> |access-date=2007-09-24 |archive-url=https://web.archive.org/web/20070911145910/http://www.adl.org/hate_symbols/numbers_83.asp |archive-date=2007-09-11 |url-status=dead }}</ref>
* An [[emoticon]] based on :3 with wide-open eyes.

==References==
{{reflist}}

{{Integers|zero}}

{{DEFAULTSORT:83 (Number)}}
[[Category:Integers]]


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