A page of the Numeropedia - the Special Encyclopedia of Numbers
[Measure] The number of inches in a chain.
1 mile = 8 furlongs = 80 chains = 5280 feet = 8000 links = 63,360 inches. Chain (or Gunter’s chain or surveyor’s chain) is a unit used in surveying.
[Phone] The number of possible telephone numbers (or blocks) formed by the first 3 digits of a 7-digit number of an NANPA/U.S. area code: 800–8 = 792, because it cannot be: 0nm, 1nm or 8 other 3-digit numbers: 211, 311, 411, 511, 611, 711, 811 and 911. (NANPA: North American Numbering Plan Adminsitration).
[Sport] The largest book ever published is GOAT, Greatest of All Time, a book tribute to former heavyweight champion Muhammad Ali: 75 pounds, 792 pages that are 20 in × 20 in.
[World] The ISO country code for Turkey. (ISO-3166)
[Library] First 3 digits in Dewey Decimal Classification System call number for library books in Game of Chance.
[World] The ISO country code for Turkmenistan. (ISO-3166)
[World] The ISO country code for Turks and Caicos Islands. (ISO-3166)
[Math.] A palindromic prime number.
[Math.] A right-truncatable prime number: self, 79 and 7 are prime numbers.
[Math.] The denominator of the Bernoulli numbers: B18 = 43867/798 and B54…
[World] The ISO country code for Tuvalu (was part of Gilbert & Ellice Islands). (ISO-3166)
[Library] Numbers 700-799 are the first 3 digits in Dewey Decimal Classification System call numbers for library books in Fine Arts (Painting, Music, Sport and Photography…). Numbers 790-799 are for books in Sport, Recreational and Performing Arts…