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25 is the sum of the five consecutive single-digit odd natural numbers 1, 3, 5, 7, and 9. 25 is a centered octagonal number, [1] a centered square number, [2] a centered octahedral number, [3] and an automorphic number. [4] 25 percent (%) is equal to 1 / 4 . It is the smallest decimal Friedman number as it can be expressed by its own ...
Quindecimal, pentadecimal [43] [40] Telephony routing over IP, and the Huli language. 16: Hexadecimal, sexadecimal, sedecimal Compact notation for binary data; tonal system; ounce and pound. 17: Septendecimal, heptadecimal [43] [40] 18: Octodecimal [43] [40] A base in which 7 n is palindromic for n = 3, 4, 6, 9. 19: Undevicesimal, nonadecimal ...
Also the converse is true: The decimal expansion of a rational number is either finite, or endlessly repeating. Finite decimal representations can also be seen as a special case of infinite repeating decimal representations. For example, 36 ⁄ 25 = 1.44 = 1.4400000...; the endlessly repeated sequence is the one-digit sequence "0".
For example, decimal (base 10) requires ten digits ... [25] To preserve ... 40 50 60 70 80 90 100 500 1000 10000 10 8;
The existence of a non-decimal base in the earliest traces of the Germanic languages is attested by the presence of words and glosses meaning that the count is in decimal (cognates to "ten-count" or "tenty-wise"); such would be expected if normal counting is not decimal, and unusual if it were. [40] [41] Where this counting system is known, it ...
A simple and efficient way to state acuity is by converting the fraction to a decimal: ... 25 1.40 20/400 10/200 6/120 3/60 0.05 20 1.30 20/300 10/150 6/90 3/45
A decimal separator is a symbol that separates the integer part from ... [25] [a] In many other countries, the radix ... (uses both marks) [40] The Netherlands; North ...
A repeating decimal or recurring decimal is a decimal representation of a number whose digits are ... 1 / 40 0.025 0 1 / 41 ... 21 base12 is 25 base10, A5 ...