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 months elapsing
Number 30: Power integer. Comprehensive Review Number Thirty (30) Powerful ♦ Pervasive ♦ Profound 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, 3 and 5) as a primary organizing principle in the distribution of prime numbers
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Number 30 facts The meaning of the number 30: How is 30 written in letters, facts, mathematics, computer science, numerology, codes Phone prefix +30 or 0030 30 in Roman Numerals and Images
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