CREATOR: @the_accountant

Thirty

Historical Significance: 30 (thirty) is the natural number following 29 and preceding 31 In mathematics • It is a primorial. • It is a pronic number. • 30 is the smallest sphenic number, and the smallest of the form 2 × 3 × r, where r is a prime greater than 3. 30 has an aliquot sum of 42; the second sphenic number and all sphenic numbers of this form have an aliquot sum 12 greater than themselves. • Adding up some subsets of its divisors (e.g., 5, 10 and 15) gives 30, hence 30 is a semiperfect number. • 30 is the largest number such that all coprimes smaller than itself, except for 1, are prime. • A polygon with thirty sides is called a triacontagon. In science • The atomic number of zinc is 30. Music • The number of variations in Bach's Goldberg Variations • 30, a 2001 album by Harry Connick, Jr. • Thirty Seconds to Mars, an American rock band • "30 Minutes", a song by t.A.T.u • Thirty, a 2013 album by Anthony Callea • XXX, an album by Danny Brown Thirty is: • Used (as –30–) to indicate the end of a newspaper (or broadcast) story, a copy editor's typographical notation • The number of days in the months April, June, September and November (and in unusual circumstances February—see February 30) • The total number of major and minor keys in Western tonal music, including enharmonic equivalents • In years of marriage, the pearl wedding anniversary • The duration in years of the Thirty Years' War - 1618 to 1648 • The code for international direct dial phone calls to Greece • The house number of 30 St Mary Axe (The Gherkin) • The number of tracks on The Beatles' eponymous album, usually known as The White Album • A stage in young adulthood • Part of the name of: o 30 Odd Foot of Grunts, the band fronted by actor Russell Crowe o The movie title 13 Going on 30, starring Jennifer Garner o The title of the Food Network show 30 Minute Meals o 30 Days of Night, a comic book miniseries and film • Judas Iscariot betrayed Jesus for 30 pieces of silver (Matthew 26:15) • The number of the French department Gard • Number of letters in Bulgarian alphabet • Number of letters in Serbian alphabet 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