CREATOR: @the_accountant

Twenty-four

Historical Significance: 24 (twenty-four) is the natural number following 23 and preceding 25. In mathematics • 24 is the factorial of 4 (24 = 4!) and a composite number, being the first number of the form 23q, where q is an odd prime. • Since 24 = 4!, it follows that 24 is the number of ways to order 4 distinct items: (1,2,3,4), (1,2,4,3), (1,3,2,4), (1,3,4,2), (1,4,2,3), (1,4,3,2), (2,1,3,4), (2,1,4,3), (2,3,1,4), (2,3,4,1), (2,4,1,3), (2,4,3,1), (3,1,2,4), (3,1,4,2), (3,2,1,4), (3,2,4,1), (3,4,1,2), (3,4,2,1), (4,1,2,3), (4,1,3,2), (4,2,1,3), (4,2,3,1), (4,3,1,2), (4,3,2,1). • It is the smallest number with exactly eight positive divisors: 1, 2, 3, 4, 6, 8, 12, and 24. • It is the largest factorial that does not contain a trailing zero at the end of its digits. • It is a highly composite number, having more divisors than any smaller number. In science • The atomic number of chromium • The number of hours in a day • 24! is an approximation (exceeding by just over 3%) of the Avogadro constant. In music • There are a total of 24 major and minor keys in Western tonal music, not counting enharmonic equivalents. Therefore, for collections of pieces written in each key, the number of pieces in such a collection; e.g., Chopin's 24 Preludes. 24 is also: • The number of bits a computer needs to represent true-color images (for a maximum of 16,777,216 colours). (But greater numbers of bits provide more accurate colors. "TrueColor" is one of many possible representations of colors.) • The number of karats representing 100% pure gold • The number of cycles in the Chinese solar year. • The number of years from the start of the Cold War until the signing of the Seabed Arms Control Treaty, which banned the placing of nuclear weapons on the ocean floor within certain coastal distances. • The number of frames per second at which motion picture film is usually projected, as this is sufficient to allow for persistence of vision. • The number of letters in both the modern and classical Greek alphabet. For the latter reason, also the number of chapters or "books" into which Homer's Odyssey and Iliad came to be divided. This hand drawn (with mouse) using sophisticated software (paint) was created as an exclusive NFT by The Accountant. Collection: The Numbers Use Case: Good for Counting Rarity: Common Minted on July 3, 2021 during the first week of Enter.art