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  2. Roman numerals - Wikipedia

    en.wikipedia.org/wiki/Roman_numerals

    There are some examples of year numbers after 1000 written as two Roman numerals 1–99, e.g. 1613 as XVIXIII, corresponding to the common reading "sixteen thirteen" of such year numbers in English, or 1519 as X XIX as in French quinze-cent-dix-neuf (fifteen-hundred and nineteen), and similar readings in other languages.

  3. Indefinite and fictitious numbers - Wikipedia

    en.wikipedia.org/wiki/Indefinite_and_fictitious...

    The number 10,000 is used to express an even larger approximate number, as in Hebrew רבבה r e vâvâh, [36] rendered into Greek as μυριάδες, and to English myriad. [37] Similar usage is found in the East Asian 萬 or 万 (lit. 10,000; pinyin: wàn), and the South Asian lakh (lit. 100,000). [38]

  4. List of numeral systems - Wikipedia

    en.wikipedia.org/wiki/List_of_numeral_systems

    "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]

  5. English numerals - Wikipedia

    en.wikipedia.org/wiki/English_numerals

    10,000: a myriad (a hundred hundred), commonly used in the sense of an indefinite very high number; 100,000: a lakh (a hundred thousand), in Indian English; 10,000,000: a crore (a hundred lakh), in Indian English and written as 100,00,000. 10 100: googol (1 followed by 100 zeros), used in mathematics; 10 googol: googolplex (1 followed by a ...

  6. Names of large numbers - Wikipedia

    en.wikipedia.org/wiki/Names_of_large_numbers

    Most English variants use the short scale today, but the long scale remains dominant in many non-English-speaking areas, including continental Europe and Spanish-speaking countries in Latin America. These naming procedures are based on taking the number n occurring in 10 3 n +3 (short scale) or 10 6 n (long scale) and concatenating Latin roots ...

  7. 100,000 - Wikipedia

    en.wikipedia.org/wiki/100,000

    In astronomy, 100,000 metres, 100 kilometres, or 100 km (62 miles) is the altitude at which the Fédération Aéronautique Internationale (FAI) defines spaceflight to begin. In paleoclimatology , the 100,000-year problem is a mismatch between the temperature record and the modeled incoming solar radiation .

  8. Googol - Wikipedia

    en.wikipedia.org/wiki/Googol

    The decay time for a supermassive black hole of roughly 1 galaxy-mass (10 11 solar masses) due to Hawking radiation is on the order of 10 100 years. [7] Therefore, the heat death of an expanding universe is lower-bounded to occur at least one googol years in the future.

  9. 10,000 - Wikipedia

    en.wikipedia.org/wiki/10,000

    Myria-(and myrio-) [15] [16] [17] is an obsolete metric prefix that denoted a factor of 10 +4, ten thousand, or 10,000. 10,000 hertz, 10 kilohertz, or 10 kHz of the radio frequency spectrum falls in the very low frequency or VLF band and has a wavelength of 30 kilometres. In orders of magnitude (speed), the speed of a fast neutron is 10000 km/s.