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40 is an abundant number.. Swiss mathematician Leonhard Euler noted 40 prime numbers generated by the quadratic polynomial + +, with values =,,,...,.These forty prime numbers are the same prime numbers that are generated using the polynomial + with values of from 1 through 40, and are also known in this context as Euler's "lucky" numbers.
42 is a pronic number, [1] an abundant number [2] as well as a highly abundant number, [3] a practical number, [4] an admirable number, [5] and a Catalan number. [6]The 42-sided tetracontadigon is the largest such regular polygon that can only tile a vertex alongside other regular polygons, without tiling the plane.
Forty Hours' Devotion, in Italian called Quarant'ore or Quarantore, is a Roman Catholic liturgical action in which continuous prayer is made for forty hours before the Blessed Sacrament in solemn exposition. [1] It often occurs in a succession of churches, with one finishing prayers at the same time as the next takes it up.
40 or forty commonly refers to: 40 (number) one of the years 40 BC, AD 40, 1940, 2040; 40 or forty may also refer to: Music. 40 (record producer) (born 1983 ...
Top 10: The Forty-Niners, a novel by Alan Moore and Gene Ha; The Forty-Niners, a group of shōjo manga artists also known as the Year 24 Group "The 49ers", a group of Cathay Pacific Airways pilots fired on 9 July 2001; 49er, the lowest initiated rank in a Triad; A real ale brewed by the Ringwood Brewery with a strength, appropriately, of 4.9%
Forty-nine is the square of the prime number seven and hence the fourth non-unitary square prime of the form p 2. It appears in the Padovan sequence , preceded by the terms 21, 28, 37 (it is the sum of the first two of these).
Forty-eight may also refer to: In Chinese numerology , 48 is an auspicious number meaning 'determined to prosper', or simply 'prosperity', which is good for business. [ 3 ]
Carl Schurz in 1860. A participant of the 1848 revolution in Germany, he immigrated to the United States and became the 13th United States Secretary of the Interior.. The Forty-eighters (48ers) were Europeans who participated in or supported the Revolutions of 1848 that swept Europe, particularly those who were expelled from or emigrated from their native land following those revolutions.