777 (number): Difference between revisions
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==In mathematics== |
==In mathematics== |
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777 is an [[odd number|odd]], [[composite number|composite]], [[palindromic number|palindromic]]<ref>{{Cite OEIS|A002113|Palindromes in base 10|access-date=2022-04-20}}</ref> [[repdigit]].<ref>{{Cite web|url=http://oeis.org/wiki/Repdigit_numbers|website=OEIS.org|title=Repdigit numbers|access-date=2022-04-20}}</ref> It is also a [[sphenic number]],<ref>{{cite OEIS|A007304|Sphenic numbers: products of 3 distinct primes|access-date=2022-04-20}}</ref> an [[extravagant number]],<ref>{{Cite OEIS|A046760|Wasteful numbers|access-date=2022-04-20}}</ref> a [[lucky number]],<ref>{{Cite OEIS|A000959|Lucky numbers|access-date=2022-04-20}}</ref> a [[polite number]],<ref>{{Cite OEIS|A138591|Sums of two or more consecutive nonnegative integers|access-date=2022-04-20}}</ref> an [[amenable number]], and a [[deficient number]]. 777 is a [[congruent number]],<ref>{{Cite OEIS|A003273|Congruent numbers|access-date=2022-04-20}}</ref> as it is possible to make a [[right triangle]] with a [[rational number]] of sides whose area is 777.<ref>{{Cite OEIS|A005100|Deficient numbers|access-date=2022-04-20}}</ref> |
777 is an [[odd number|odd]], [[composite number|composite]], [[palindromic number|palindromic]]<ref>{{Cite OEIS|A002113|Palindromes in base 10|access-date=2022-04-20}}</ref> [[repdigit]].<ref>{{Cite web|url=http://oeis.org/wiki/Repdigit_numbers|website=OEIS.org|title=Repdigit numbers|access-date=2022-04-20}}</ref> It is also a [[sphenic number]],<ref>{{cite OEIS|A007304|Sphenic numbers: products of 3 distinct primes|access-date=2022-04-20}}</ref> an [[extravagant number]],<ref>{{Cite OEIS|A046760|Wasteful numbers|access-date=2022-04-20}}</ref> a [[lucky number]],<ref>{{Cite OEIS|A000959|Lucky numbers|access-date=2022-04-20}}</ref> a [[polite number]],<ref>{{Cite OEIS|A138591|Sums of two or more consecutive nonnegative integers|access-date=2022-04-20}}</ref> an [[amenable number]], and a [[deficient number]]. 777 is a [[congruent number]],<ref>{{Cite OEIS|A003273|Congruent numbers|access-date=2022-04-20}}</ref> as it is possible to make a [[right triangle]] with a [[rational number]] of sides whose area is 777.<ref>{{Cite OEIS|A005100|Deficient numbers|access-date=2022-04-20}}</ref> |
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==Religious significance== |
==Religious significance== |
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Latest revision as of 14:35, 5 November 2024
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|---|---|---|---|---|
| Cardinal | seven hundred seventy-seven | |||
| Ordinal | 777th (seven hundred seventy-seventh) | |||
| Factorization | 3 × 7 × 37 | |||
| Greek numeral | ΨΟΖ´ | |||
| Roman numeral | DCCLXXVII | |||
| Binary | 11000010012 | |||
| Ternary | 10012103 | |||
| Senary | 33336 | |||
| Octal | 14118 | |||
| Duodecimal | 54912 | |||
| Hexadecimal | 30916 | |||
777 (seven hundred [and] seventy-seven) is the natural number following 776 and preceding 778. The number 777 is significant in numerous religious and political contexts.
In mathematics
[edit]777 is an odd, composite, palindromic[1] repdigit.[2] It is also a sphenic number,[3] an extravagant number,[4] a lucky number,[5] a polite number,[6] an amenable number, and a deficient number. 777 is a congruent number,[7] as it is possible to make a right triangle with a rational number of sides whose area is 777.[8]
Religious significance
[edit]According to the Bible, Lamech, the father of Noah lived for 777 years.[9] Some of the known religious connections to 777 are noted in the sections below.
Christianity
[edit]According to some, 777 represents the threefold perfection of the Trinity.[10]
Thelema
[edit]777 is also found in the title of the book 777 and Other Qabalistic Writings of Aleister Crowley pertaining to the law of thelema.[11]
Political significance
[edit]Afrikaner Weerstandsbeweging
[edit]The Afrikaner Resistance Movement (Afrikaner Weerstandsbeweging, AWB), a Boer-nationalist, neo-Nazi, and white supremacist movement in South Africa, used the number 777 as part of their emblem.[12]
The number refers to a triumph of "God's number" 7 over the Devil's number 666.[13] On the AWB flag, the numbers are arranged in a triskelion shape, resembling the Nazi Swastika.
Computing
[edit]In Unix's chmod, change-access-mode command, the octal value 777 grants all file-access permissions to all user types in a file.
Commercial
[edit]Aviation
[edit]
Boeing, the largest manufacturer of airliners in the United States, released the Boeing 777 (commonly nicknamed the Triple Seven) in June 1995.[14] The 777 family includes the 777-200, 777-200ER, the 777-300, the 777-200LR Worldliner, the 777-300ER, and the 777 Freighter. The -100 wasn't continued in production due to loss of interest. In the 21st century, Boeing has developed what will be in use for some different airlines, called the Boeing 777X. Projects have been delayed because of COVID-19, but will return to normal production.[15]
777 Tower
[edit]777 Tower is an office building situated in the US and it was built in 1991.[16]
Gambling and luck
[edit]777 is used on most slot machines in the United States to identify a jackpot. As it is considered a lucky number, banknotes with a serial number containing 777 tend to be valued by collectors and numismatists. The US Mint and the Bureau of Engraving and Printing sells uncirculated 777 $1 bills for this reason.[17]
References
[edit]- ^ Sloane, N. J. A. (ed.). "Sequence A002113 (Palindromes in base 10)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2022-04-20.
- ^ "Repdigit numbers". OEIS.org. Retrieved 2022-04-20.
- ^ Sloane, N. J. A. (ed.). "Sequence A007304 (Sphenic numbers: products of 3 distinct primes)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2022-04-20.
- ^ Sloane, N. J. A. (ed.). "Sequence A046760 (Wasteful numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2022-04-20.
- ^ Sloane, N. J. A. (ed.). "Sequence A000959 (Lucky numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2022-04-20.
- ^ Sloane, N. J. A. (ed.). "Sequence A138591 (Sums of two or more consecutive nonnegative integers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2022-04-20.
- ^ Sloane, N. J. A. (ed.). "Sequence A003273 (Congruent numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2022-04-20.
- ^ Sloane, N. J. A. (ed.). "Sequence A005100 (Deficient numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2022-04-20.
- ^ "From Adam to Noah" Archived 2014-02-26 at the Wayback Machine, Biblica Inc.,1973.Retrieved on 27 March 2014
- ^ "Properties of the number 777". Riding the Beast. Retrieved 6 December 2013.
- ^ Crowley, Aleister. ["777 And Other Qabalistic Writings of Aleister Crowley"]. Weiser Books, June 1, 1986. Retrieved on March 27, 2014.
- ^ "Afrikaner Resistance Movement" Archived 2014-03-24 at the Wayback Machine, LA times, 3 April 2010. Retrieved March 24, 2014.
- ^ "The Three Sevens flag" Archived 2014-03-15 at the Wayback Machine, 8 March 2014. Retrieved on 14 March 2014.
- ^ "Boeing 777 Facts". Retrieved 5 December 2013.
- ^ "Technical Information". Boeing. Retrieved 5 December 2013.
- ^ "Pelli Stretches His Skin to New Heights : Architecture: Designer's trademark style is manifested in 53-story tower now rising in L.A." April 8, 1990 – via LA Times.
- ^ "$1 Lucky 777 Note". United States Mint. Retrieved 2019-02-07.