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  2. List of numeral systems - Wikipedia

    en.wikipedia.org/wiki/List_of_numeral_systems

    72: The smallest base greater than binary such that no three-digit narcissistic number exists. 80: Octogesimal: Used as a sub-base in Supyire. 85: Ascii85 encoding. This is the minimum number of characters needed to encode a 32 bit number into 5 printable characters in a process similar to MIME-64 encoding, since 85 5 is only slightly bigger ...

  3. 72 (number) - Wikipedia

    en.wikipedia.org/wiki/72_(number)

    72 is the magic constant of the first non-normal, full prime reciprocal magic square in decimal, based on ⁠ 1 / 17 ⁠ in a 16 × 16 grid. [ 17 ] [ 18 ] 72 is the sum between 60 and 12 , the former being the second unitary perfect number before 6 (and the latter the smallest of only two sublime numbers ).

  4. Decimal - Wikipedia

    en.wikipedia.org/wiki/Decimal

    Decimals may sometimes be identified by a decimal separator (usually "." or "," as in 25.9703 or 3,1415). [3] Decimal may also refer specifically to the digits after the decimal separator, such as in "3.14 is the approximation of π to two decimals". Zero-digits after a decimal separator serve the purpose of signifying the precision of a value.

  5. Arithmetic - Wikipedia

    en.wikipedia.org/wiki/Arithmetic

    The decimal representation of an irrational number is infinite without repeating decimals. ... 100, 1000, and 10,000. ... [72] Integer arithmetic is not closed under ...

  6. 100 - Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/100

    Year 100 was a leap year starting on Wednesday of the Julian calendar. The denomination 100 for this year has been used since the early medieval period.

  7. List of Unicode characters - Wikipedia

    en.wikipedia.org/wiki/List_of_Unicode_characters

    where nnnn is the code point in decimal form, ... 72 0110 Latin Capital letter H: 0041 U+0049 I 73 ... 100 0144 Latin Small Letter D 0069 U+0065 e

  8. Scientific notation - Wikipedia

    en.wikipedia.org/wiki/Scientific_notation

    To represent the number 1,230,400 in normalized scientific notation, the decimal separator would be moved 6 digits to the left and × 10 6 appended, resulting in 1.2304 × 10 6. The number −0.004 0321 would have its decimal separator shifted 3 digits to the right instead of the left and yield −4.0321 × 10 −3 as a result.

  9. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    To calculate a percentage of a percentage, convert both percentages to fractions of 100, or to decimals, and multiply them. For example, 50% of 40% is: ⁠ 50 / 100 ⁠ × ⁠ 40 / 100 ⁠ = 0.50 × 0.40 = 0.20 = ⁠ 20 / 100 ⁠ = 20%. It is not correct to divide by 100 and use the percent sign at the same time; it would literally imply ...