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  2. Unit of time - Wikipedia

    en.wikipedia.org/wiki/Unit_of_time

    About 31,709 years. megaannum: 10 6 yr: Also called "megayear". 1000 millennia (plural of millennium), or 1 million years (in geology, abbreviated as Ma). petasecond: 10 15 s: About 31 709 791 years. galactic year: 2.3 × 10 8 yr: The amount of time it takes the Solar System to orbit the center of the Milky Way Galaxy (approx 230 000 000 years ...

  3. Non-numerical words for quantities - Wikipedia

    en.wikipedia.org/wiki/Non-numerical_words_for...

    Along with numerals, and special-purpose words like some, any, much, more, every, and all, they are Quantifiers. Quantifiers are a kind of determiner and occur in many constructions with other determiners, like articles: e.g., two dozen or more than a score. Scientific non-numerical quantities are represented as SI units.

  4. 20 (number) - Wikipedia

    en.wikipedia.org/wiki/20_(number)

    It is a largely composite number, [4] as it has 6 divisors and no smaller number has more than 6 divisors. It has an aliquot sum of 22 ; a semiprime , within an aliquot sequence of four composite numbers (20, 22, 14 , 10 , 8 ) that belong to the prime 7 -aliquot tree.

  5. Tennis scoring system - Wikipedia

    en.wikipedia.org/wiki/Tennis_scoring_system

    For instance, if the server has won three points so far in the game, and the non-server has won one, the score is "40–15". When both sides have won the same number of points within a given game—i.e., when each side has won one, or two, points—the score is described as "15–all" and "30–all", respectively.

  6. The U.S. is no longer one of the 20 happiest countries. If ...

    www.aol.com/u-no-longer-one-20-150924814.html

    The U.S., in particular, dropped out of the top 20 for the first time, falling to 23rd place from 15th last year, driven by a large drop in the well-being of Americans under 30.

  7. Retirement Could Last 20+ Years: New Life Expectancy Data ...

    www.aol.com/retirement-could-last-20-years...

    With life expectancy on the rise, preparing for a 20+ year retirement is more important than ever. Read Next: The number of ‘401(k)' Millionaires is up 43% from last year — Here are three ways ...

  8. Vigesimal - Wikipedia

    en.wikipedia.org/wiki/Vigesimal

    In a vigesimal place system, twenty individual numerals (or digit symbols) are used, ten more than in the decimal system. One modern method of finding the extra needed symbols is to write ten as the letter A, or A 20, where the 20 means base 20, to write nineteen as J 20, and the numbers between with the corresponding letters of the alphabet.

  9. Want to live 20 years longer? Study finds 8 habits that can ...

    www.aol.com/lifestyle/want-live-20-years-longer...

    The study analyzed lifestyle and mortality data from more than 700,000 U.S. veterans between the ages of 40 and 99 who enrolled in the MillionVeteran Program (MVP) between 2011 and 2019.