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en.wikipedia.org/wiki/28_(number)

28 (twenty-eight) is the natural number following 27 and preceding 29. Contents. [hide] .... sema ritual is called the "Devri kebir", meaning the "Big Circle" and is a reference to above astronomical facts about the year and the Saturn year.

www.thefactsite.com/2013/02/facts-about-number-28.html

If twenty-eight is your lucky number or birthday, or you want to know how awesome this number actually is, check out the top 28 facts about this special number.

numbermatics.com/n/28

Your guide to the nunber 28, an even composite number composed of two distinct primes. Mathematical info, fun facts and numerical data for STEM, education ...

researchmaniacs.com/Numbers/Number-28.html

Number 28. Interesting facts and information about number twenty-eight (Number 28).

kottke.org/01/09/fun-facts-about-the-number

Sep 27, 2001 ... Fun facts about the number 28: - 28 is a perfect number. - There are ... It takes the Moon a little less than 28 Earth days to orbit around the Earth.

hubpages.com/education/The-number-28-twenty-eight-Interesting-and-fun-facts-about-28

Jun 19, 2013 ... More non-math facts about the number 28: In chemistry, 28 is the atomic number of nickel. In biology, the average human menstrual cycles is ...

veastrology.com/birthday-number28.html

Those born with Number 28 possess a deep analytical mind, their rational approach to business is ... These people are very interesting, intelligent and sensitive.

badseypublications.co.uk/number/Num28.htm

Numbers, Facts, Figures & Fiction (book cover) · How to order ... 28. = 2 × 2 × 7. = 2 × 14 = 4 × 7. = 1 + 2 + 3 + 4 + 5 + 6 + 7. A triangular number. There are ... 28 is a perfect number because it equals the sum of all its factors (apart from 28 itself).

www.archimedes-lab.org/numbers/Num24_69.html

Fun facts on numbers (and their strange properties), both mathematical and ... The number facts in this website are also available as features for print and .... the string 28 is at position 33 counting from the first digit after the decimal point in Pi.

tvfacts.co.uk/the-number-28

Mar 21, 2016 ... The Number 28 - Facts The Arab alphabet has 28 letters. 28 miles is equal to 45.061632 kilometres. 28 days is the average human menstrual ...