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In tarot, Roman numerals (with zero) are often used to denote the cards of the Major Arcana. In Ireland, Roman numerals were used until the late 1980s to indicate the month on postage Franking. In documents, Roman numerals are sometimes still used to indicate the month to avoid confusion over day/month/year or month/day/year formats.
35 is a tetrahedral number. The 35 free hexominoes. 35 is the sum of the first five triangular numbers, making it a tetrahedral number. [1]35 is the 10th discrete semiprime [2] and the first with 5 as the lowest non-unitary factor, thus being the first of the form (5.q) where q is a higher prime.
47,326,800 = first number of the first century with the same prime pattern (in this case, no primes) as the previous century [35] 47,458,321 = 6889 2 = 83 4 48,024,900 = square triangular number
"A base is a natural number B whose powers (B multiplied by itself some number of times) are specially designated within a numerical system." [1]: 38 The term is not equivalent to radix, as it applies to all numerical notation systems (not just positional ones with a radix) and most systems of spoken numbers. [1]
Numeral or number prefixes are prefixes derived from numerals or occasionally other numbers. In English and many other languages, they are used to coin numerous series of words. For example: simplex, duplex (communication in only 1 direction at a time, in 2 directions simultaneously)
a happy number [6] and a self number in base 10. [7] with an aliquot sum of 46; itself a semiprime, within an aliquot sequence of seven members (86,46,26,16,15,9,4,3,1,0) in the Prime 3-aliquot tree. It appears in the Padovan sequence, preceded by the terms 37, 49, 65 (it is the sum of the first two of these). [8]
Greek numerals, also known as Ionic, Ionian, Milesian, or Alexandrian numerals, is a system of writing numbers using the letters of the Greek alphabet.In modern Greece, they are still used for ordinal numbers and in contexts similar to those in which Roman numerals are still used in the Western world.
a palindromic number in bases 5 (323 5), 10 (88 10), 21 (44 21), and 43 (22 43). a repdigit in bases 10, 21 and 43. a 2-automorphic number. [6] the smallest positive integer with a Zeckendorf representation requiring 5 Fibonacci numbers. a strobogrammatic number. [7] the largest number in English not containing the letter 'n' in its name, when ...