Orders of Magnitude (numbers) - 101

101

(10; ten)

ISO: deca- (da)

• Demography: The population of Pesnopoy, a village in Bulgaria, was 10 in 2007.
• Human scale: There are 10 fingers on a pair of human hands, and 10 toes on a pair of human feet.
• Mathematics: The number system used in everyday life, the decimal system, has 10 digits: 0,1,2,3,4,5,6,7,8,9.
• Mathematics: The hexadecimal system, a common number system used in computer programming, uses 16 digits where the last 6 are usually represented by letters: 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F.
• Science Fiction: The 23 enigma plays a prominent role in the plot of The Illuminatus! Trilogy by Robert Shea and Robert Anton Wilson.
• Alphabetic writing: There are 26 letters in the Latin-derived English alphabet
• Science Fiction: The number 42, in the novel The Hitchhiker's Guide to the Galaxy by Douglas Adams, is the Answer to the Ultimate Question of Life, the Universe, and Everything which is calculated by an enormous supercomputer over a period of 7.5 million years.
• Phonology: 47 phonemes in English phonology in Received Pronunciation