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  2. Names of large numbers - Wikipedia

    en.wikipedia.org/wiki/Names_of_large_numbers

    Million Million Million M Mega-2 1 10 9: Billion Thousand million Milliard G Giga-3 2 10 12: Trillion Billion Billion T Tera-4 2 10 15: 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 ...

  3. Long and short scales - Wikipedia

    en.wikipedia.org/wiki/Long_and_short_scales

    The root mil in million does not refer to the numeral, 1. The word, million, derives from the Old French, milion, from the earlier Old Italian, milione, an intensification of the Latin word, mille, a thousand. That is, a million is a big thousand, much as a great gross is a dozen gross or 12 × 144 = 1728. [7]

  4. Billion - Wikipedia

    en.wikipedia.org/wiki/Billion

    Billion is a word for a large number, and it has two distinct definitions: . 1,000,000,000, i.e. one thousand million, or 10 9 (ten to the ninth power), as defined on the short scale.

  5. Scientific notation - Wikipedia

    en.wikipedia.org/wiki/Scientific_notation

    Some countries have had events of inflation of 1 million percent or more in a single month, which usually results in the rapid abandonment of the currency. For example, in November 2008 the monthly inflation rate of the Zimbabwean dollar reached 79.6 billion percent (470% per day); the approximate value with three significant figures would be 7 ...

  6. Indian numbering system - Wikipedia

    en.wikipedia.org/wiki/Indian_numbering_system

    A billion is called arab (ارب), and one hundred billion/arab is called a kharab (کھرب). Lakh has entered the Swahili language as "laki" and is in common use. Formal written publications in English in India tend to use lakh/crore for Indian currency and International numbering for foreign currencies. [7]

  7. Large numbers - Wikipedia

    en.wikipedia.org/wiki/Large_numbers

    For example "billion" may be easier to comprehend for some readers than "1,000,000,000". But, as names, a numeric value can be lengthy. For example, "2,345,789" is "two million, three hundred forty five thousand, seven hundred and eighty nine".

  8. Air pollutant concentrations - Wikipedia

    en.wikipedia.org/wiki/Air_pollutant_concentrations

    1 volume percent = 10,000 ppmv (i.e., parts per million by volume) with a million being defined as 10 6. Care must be taken with the concentrations expressed as ppbv to differentiate between the British billion which is 10 12 and the USA billion which is 10 9 (also referred to as the long scale and short scale billion, respectively).

  9. Trillion - Wikipedia

    en.wikipedia.org/wiki/Trillion

    1,000,000,000,000, i.e. one million million, or 10 12 (ten to the twelfth power), as defined on the short scale. This is now the meaning in both American and British English. 1,000,000,000,000,000,000, i.e. 10 18 (ten to the eighteenth power), as defined on the long scale. This is one million times larger than the short scale trillion.