Английская Википедия:214 (number)
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Шаблон:More citations needed Шаблон:Infobox number 214 (two hundred [and] fourteen) is the natural number following 213 and preceding 215.
In mathematics
- 214 is a composite number[1] (with prime factorization 2 * 107[1]) and a triacontakaiheptagonal number (37-gonal number).[2]
- 214!! − 1 is a 205-digit prime number.[3]
- The 11th perfect number 2106×(2107−1) has 214 divisors.[4]
- Number of regions into which a figure made up of a row of 5 adjacent congruent rectangles is divided upon drawing diagonals of all possible rectangles.[5]
In other fields
- 214 is a song by Rivermaya.[6]
- 214 Aschera is a Main belt asteroid.[7]
- E214 is the E number of Ethylparaben.[8]Шаблон:Better source needed
- The Bell 214 is a helicopter.Шаблон:Citation needed
- The Tupolev 214 is an airliner.Шаблон:Citation needed
- Type 214 submarineШаблон:Citation needed
- There are several highways numbered 214.Шаблон:Citation needed
- Form DD 214 documents discharge from the U.S. Armed Forces.[9]
- The number of Wainwright-listed summits of the English Lake DistrictШаблон:Citation needed
214 is also:
- The first area code of metropolitan Dallas, Texas[10]
- The number of Chinese radicals for the writing of Chinese characters according to the 1716 Kangxi Dictionary.[11]Шаблон:Better source needed
- SMTP status code for a reply message to a help command[12]Шаблон:Better source needed
- The Dewey Decimal Classification for Theodicy (the problem of evil).[13]
References
- Wells, D. (1987). The Penguin Dictionary of Curious and Interesting Numbers (p. 143). London: Penguin Group.
