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Alcor News #47, January 20, 2006
Alcor News #47, January 20, 2006
cryonics.com
 Barco HD-47 47 Inch High Definition Flat Display Sales, Service and Repair
Barco HD-47 47 Inch High Definition Flat Display Sales, Service and Repair
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 Schilling's Net Health Book - 47 ,XYY Syndrome
Schilling's Net Health Book - 47,XYY Syndrome
nethealthbook.com
 BetterU News - Issue #47 - No-Rest Lactic Acid Supersetting, The Lebert
BetterU News - Issue #47 - No-Rest Lactic Acid Supersetting, The Lebert
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47
Cardinal forty-seven
Ordinal 47th
(forty-seventh)
Factorization prime
Divisors 1, 47
Roman numeral XLVII
Binary 1011112
Octal 578
Duodecimal 3B12
Hexadecimal 2F16

47 (forty-seven) is the natural number following 46 and preceding 48.

Contents

[edit] In mathematics

Forty-seven is the 15th prime number, a safe prime, the 13th supersingular prime, and the 6th Lucas prime. 47 is a highly cototient number. It is an Eisenstein prime with no imaginary part and real part of the form 3n − 1.

It is also a Keith number, because it recurs in a Fibonacci-like sequence started from its base 10 digits: 4, 7, 11, 18, 29, 47...

47 is a strictly non-palindromic number.

Its representation in binary being 00101111, 47 is a prime Thabit number, and as such is related to the pair of amicable numbers {17296, 18416}.

47 is a Carol number. It is a real prime number.

[edit] In science

[edit] Astronomy

[edit] As an in-joke

There exists a 47 society,[4] an outgrowth of a movement started at Pomona College, California, USA, which propagates the belief (or, to some, the inside joke) that the number forty-seven occurs in nature with noticeably higher frequency than other natural numbers, that it is the quintessential random number.[5] The origin of 47 lore at Pomona appears to be a mathematical proof, written in 1964 by Professor Donald Bentley, which supposedly demonstrated that all numbers are equal to 47. However, this proof was used by Professor Bentley as a "joke proof" to introduce his students to the concept of mathematical proofs, and is not mathematically valid.

Joe Menosky, who graduated from Pomona College in 1979 and went on to become one of the story writers of Star Trek: The Next Generation, "infected" other Star Trek writers with it. As a result the number 47, its reverse 74, or a multiple of 47 occurs in some way or other in almost every episode of this program and its spin-offs Star Trek: Deep Space Nine, Star Trek: Voyager and Star Trek: Enterprise. The number might be mentioned in the dialogue, appear on a computer screen a character is looking at, or be a substring of a larger number. Some examples are listed here:

  • In Star Trek Generations, Scotty manages to beam up only 47 El-Aurians before their ship is destroyed by the energy ribbon.
  • In the TNG episode "Darmok," Worf reports a particle gradient of 4/7.
  • In the DS9 episode "Whispers," the planet Parada 4 has seven moons.
  • In the Voyager episode "Tattoo," we learn that the Emergency Medical Holographic Channel is 47.
  • In the Voyager episode "Non Sequitur," Harry Kim lives in apartment 4-G, G being the seventh letter of the alphabet. The intentionality of this reference to 47 was confirmed by Brannon Braga, the writer of that episode.[6]
  • In the 2009 film Star Trek, the Enterprise was built in Sector 47 of the Riverside Shipyards, and 47 Klingon ships are said to have been destroyed by Nero's ship, the Narada.
  • The registry number for the USS Enterprise, NCC-1701, is based on the story of 47 Ronin, which took place in the year 1701.

From Star Trek, the 47 was carried on into modern pop culture and nowadays appears frequently in motion pictures, television shows and in music, contributing to the 47 society belief/myth.

[edit] In motion pictures

[edit] In television shows

  • The Sky One programme Brainiac had a short segment entitled '47 second science'.
  • In the manga and anime Claymore, there are 47 warriors in the Organization, as well as the main character being Rank 47
  • In the TV series Scrubs, the number of the apartment JD moves out to from Turk's apartment is also #47.
  • In various episodes of the television series Alias, Lost and Fringe, the number 47 makes an appearance. In Alias, the number 47 is central to the plot as it had significance in the work of Rambaldi.
  • The show Seinfeld has many references. In "The Pothole", Elaine orders dish number 47 from a Chinese restaurant. In The Parking Garage, Jerry lies to a security guard, telling him that it was his parents' 47th anniversary. It was in fact George's parents' 47th anniversary.
  • In an episode of The George Lopez Show, it is revealed that Carmen has told her parents that she hates them 47 times.
  • In an episode of The OC, page 47 of A Season for Peaches is mentioned several times.
  • In the 36th episode of South Park entitled Jackovasaurus, one of the Jackovasaurs named "Jakov" quickly shouts "47" when he was asked a question on a game show.
  • In the 2001 TV series Alias, the elusive page from the Rambaldi manuscript is page 47.
  • In the 2009 episode of Fringe, the number 47 is located on the wall surrounded by newspaper clippings.
  • In the 119th episode of South Park entitled Douche and Turd, when South Park Elementary gets visited by PETA, Mr. Garrison shouted "[...] since our school has been attacked by eco-terrorists for the 47th time[...]" when he addresses his class.
  • In the UK sci fi comedy Red Dwarf, episode titled Quarantine. The crew on board starbug are instructed to go to bay 47.
  • In the first episode of the TV series Jericho, a road sign is passed saying that the town of Jericho is 47 miles away.

[edit] In music

[edit] Other appearances

  • In the video game series Hitman, the main character is Agent 47
  • In the video game Half-Life 2: Episode 1, the protagonist, Gordon Freeman, begins the game with 47 points of health.
  • The droid HK-47 from Star Wars: Knights of the Old Republic.
  • 47 in the number of Ray Garraty, the main character in The Long Walk by Stephen King
  • 47 appears on every bottle produced by Full Sail Brewery of Hood River, Oregon. This was representative of the number of employees at one time, and CEO Irene Firmat was apparently amused that it was 47, supposedly the most common random number. The brewery now has more employees, but the number remains on the bottles.[8]
  • In the animated web series Afterworld, the worldwide EMP re-occurs every 47 minutes.
  • Claire was the 47th warrior in the 2007 Action-packed Japanese series Claymore (anime).
  • On youtube there is a spoof making fun of The Number 23 and it is called The Number 47. Everything equals 47!
  • Rolaids has claimed its stomach antacid tablet absorbs 47 times it weight in excess stomach acid and 47% more than Tumms.

[edit] In sports

[edit] Calendar years

  • 47 BC
  • A.D. 47
  • 947
  • 1047
  • 1147
  • 1247
  • 1347
  • 1447
  • 1547
  • 1647
  • 1747
  • 1847
  • 1947
  • 2047

[edit] Other

[edit] References

[edit] External links




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