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 …

This is a free online math calculator together with a variety of other free math calculators that compute standard deviation, percentage, fractions, and more.

Dec 15, 2016 · The meaning of THIRTY is a number equal to three times 10. How to use thirty in a sentence.

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 …

The meaning of the number 30: How is 30 spell, written in words, interesting facts, mathematics, computer science, numerology, codes. Phone prefix +30 or 0030. 30 in Roman Numerals and images.

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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.

Welcome to the most comprehensive review of the number 30 ever created. The number 30 possesses remarkable attributes, including–and perhaps most profoundly–its role (along with its prime factors 2, …

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!

It is the number between twenty-nine and thirty-one. In roman numerals it is XXX.