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  2. Names of large numbers - Wikipedia

    en.wikipedia.org/wiki/Names_of_large_numbers

    Quadrillion Thousand billion Billiard P Peta-5 3 10 18: Quintillion Trillion Trillion E Exa-6 3 10 21: Sextillion Thousand trillion Trilliard Z Zetta-7 4 10 24: Septillion Quadrillion Quadrillion Y Yotta-8 4 10 27: Octillion Thousand quadrillion Quadrilliard R Ronna-9 5 10 30: Nonillion Quintillion Quintillion Q Quetta-10 5 10 33: Decillion ...

  3. Large numbers - Wikipedia

    en.wikipedia.org/wiki/Large_numbers

    To compare numbers in scientific notation, say 5×10 4 and 2×10 5, compare the exponents first, in this case 5 > 4, so 2×10 5 > 5×10 4. If the exponents are equal, the mantissa (or coefficient) should be compared, thus 5×10 4 > 2×10 4 because 5 > 2.

  4. -yllion - Wikipedia

    en.wikipedia.org/wiki/-yllion

    -yllion (pronounced / aɪ lj ən /) [1] is a proposal from Donald Knuth for the terminology and symbols of an alternate decimal superbase [clarification needed] system. In it, he adapts the familiar English terms for large numbers to provide a systematic set of names for much larger numbers.

  5. Orders of magnitude (time) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(time)

    5.4 × 10 83 Qs (1.7 × 10 106 years): The approximate lifespan of a supermassive black hole with a mass of 20 trillion solar masses [21] 10 10 10 76.66 {\displaystyle 10^{10^{10^{76.66}}}} Qs: The scale of an estimated Poincaré recurrence time for the quantum state of a hypothetical box containing an isolated black hole of stellar mass [ 22 ...

  6. Orders of magnitude (numbers) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(numbers)

    Computing – UTF-8: 2,147,483,648 (2 31) possible code points (U+0000 - U+7FFFFFFF) in the pre-2003 version of UTF-8 (including five- and six-byte sequences), before the UTF-8 code space was limited to the much smaller set of values encodable in UTF-16. Biology – base pairs in the genome: approximately 3.3 × 10 9 base pairs in the human ...

  7. Wheat and chessboard problem - Wikipedia

    en.wikipedia.org/wiki/Wheat_and_chessboard_problem

    The total number of grains can be shown to be 2 64 −1 or 18,446,744,073,709,551,615 (eighteen quintillion, four hundred forty-six quadrillion, seven hundred forty-four trillion, seventy-three billion, seven hundred nine million, five hundred fifty-one thousand, six hundred and fifteen).

  8. Long and short scales - Wikipedia

    en.wikipedia.org/wiki/Long_and_short_scales

    The long and short scales are two powers of ten number naming systems that are consistent with each other for smaller numbers, but are contradictory for larger numbers. [1] [2] Other numbering systems, particularly in East Asia and South Asia, have large number naming that differs from both the long and short scales.

  9. Orders of magnitude (data) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(data)

    Enough to uniquely identify one codon of genetic code. The size of code points in Base64; thus, often the entropy per character in a randomly-generated password. 7 bits – the size of code points in the ASCII character set – minimum length to store 2 decimal digits. 2 3: byte (B) 8 bits – (a.k.a. octet or octad(e)) on many computer ...