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The base "Roman fraction" is S, indicating 1 ⁄ 2. The use of S (as in VIIS to indicate 7 1 ⁄ 2) is attested in some ancient inscriptions [45] and also in the now rare apothecaries' system (usually in the form SS): [44] but while Roman numerals for whole numbers are essentially decimal, S does not correspond to 5 ⁄ 10, as one might expect ...
Angka hexops is a species of Southeast Asian spiders in the family Microstigmatidae. It is the only species in the monotypic genus Angka . [ 1 ] It was first described by Robert Raven & Peter J. Schwendinger in 1995, [ 2 ] and has only been found in Thailand .
1 is read off as "one 1" or 11. 11 is read off as "two 1s" or 21. 21 is read off as "one 2, one 1" or 1211. 1211 is read off as "one 1, one 2, two 1s" or 111221. 111221 is read off as "three 1s, two 2s, one 1" or 312211. The look-and-say sequence was analyzed by John Conway [1] after he was introduced to it by one of his students at a party. [2 ...
231 is the 21st triangular number, [1] a doubly triangular number, a hexagonal number, an octahedral number [2] and a centered octahedral number. [3] 231 is palindromic in base 2 (11100111 2). 231 is the number of integer partitions of 16. The Mertens function of 231 returns 0. [4]
2 or V 2 its third inversion (F–G–B–D). [11]: 79–80 In the United Kingdom, there exists another system where the Roman numerals are paired with Latin letters to denote inversion. [14] In this system, an “a” suffix is used to represent root position, “b” for first inversion, and “c” for second inversion.
666 is also the sum of the squares of the first seven primes (2 2 + 3 2 + 5 2 + 7 2 + 11 2 + 13 2 + 17 2), [7] [10] while the number of twin primes less than 6 6 + 666 is 666. [11] A prime reciprocal magic square based on in decimal has a magic constant of 666.
211 is an odd number.; 211 is a primorial prime, the sum of three consecutive primes (+ +), a Chen prime, a centered decagonal prime, and a self prime. [1]211 is the smallest prime separated by 12 from the nearest primes (199 and 223).
However, the numbers 1, 2, 3, and 200, 300, etc. change their endings for gender and grammatical case. Ūnus 'one' declines like a pronoun and has genitive ūnīus (or ūnius ) and dative ūnī : The first three numbers have masculine, feminine and neuter forms fully declined as follows (click on GL or Wh to change the table to the American ...