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  1. 30 (number) - Wikipedia

    The number of days in the months April, June, September and November (and in unusual circumstances February—see February 30). Although the number of days in a month vary, 30 is used to estimate …

  2. Thirty Facts About The Number 30 - The Fact Site

    Jan 29, 2016 · Numbers each have their own value depending on what importance people give to them, maybe it marks an anniversary, or a lucky number. Well, here's 30 facts!

  3. Number 30 facts

    Mobile and telephony Number 30 or +30 or 0030 is a dial the international call prefix for Greece. (00/+) is dial the international call prefix.

  4. 30 Definition & Meaning - Merriam-Webster

    1 : a number equal to three times 10 see number 2 plural : the numbers 30 to 39 especially : the years 30 to 39 in a lifetime or century thirtieth -ē-əth

  5. Number 30: Power integer. Comprehensive Review

    30 is an abundant number (aka excessive number) in that the sum of its divisors (72) exceeds 2n. 30's abundance is thus calculated as: 72 - (2∗30) = 12. 30 is a highly abundant number.

  6. Math Calculator

    Math Calculator from Mathway will evaluate various math problems from basic arithmetic to advanced trigonometric expressions.

  7. 30 - definition of 30 by The Free Dictionary

    Define 30. 30 synonyms, 30 pronunciation, 30 translation, English dictionary definition of 30. Noun 1. 30 - the cardinal number that is the product of ten and three thirty, XXX large integer - an integer equal …

  8. What does 30 mean? - Definitions.net

    30 is a positive integer that comes after 29 and before 31. It is an even number and it is also considered a composite number, meaning it can be divided evenly by numbers other than 1 or itself.

  9. 30 - Definition, Meaning & Synonyms | Vocabulary.com

    30 Definitions of 30 noun the cardinal number that is the product of ten and three synonyms: XXX, thirty

  10. About The Number 30 - Numeraly

    From its role in geometry, astronomy, and religion, to its presence in everyday life, the number 30 has a wide range of applications and meanings that will pique your curiosity. Join us as we explore the …