Properties of 20: prime decomposition, primality test, divisors, arithmetic properties, and conversion in binary, octal, hexadecimal, etc. The meaning of the number 20: How is 20 written in letters, facts, mathematics, computer science, numerology, codes. Phone prefix +20 or 0020. 20 in Roman Numerals and Images. 20 Look up twenty in Wiktionary, the free dictionary. Twenty or 20 may refer to: 20 (number), the natural number following 19 and preceding 21 one of the years 20 BC, AD 20, 1920, 2020 Explore the hidden nature of 20, an even number composed of two distinct primes multiplied together. Includes Prime Factorization, Divisors, Bases and Fun Facts for students, number lovers and curious minds. Interestingly if you copy the URL containing the blank space character from Firefox and paste it into Notepad, the blank space will be converted back into %20 percent encoding. The fact is every character on your keyboard can be converted into a percent encoding but it would be too troublesome and cryptic to encode every character. 20 (twenty) is the natural number following 19 and preceding 21. A group of twenty units is sometimes referred to as a score. [1][2] The number 20 intertwines itself into various facets of our lives, from history and science to culture and spirituality. With its diverse symbolism and numerical properties, this enigmatic digit continues to captivate our imaginations. The meaning of TWENTY is a number equal to two times 10. Number 20 plays a huge part in numerology, society, games and much more - that's why we've put together twenty awesome facts all about this special number. Watch the official 20/20 online at ABC.com. Get exclusive videos, blogs, photos, cast bios, free episodes.