- A .45-caliber pistol.
- A phonograph record designed to be played at 45 revolutions per minute.
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Dictionary:
for·ty-five (fôr'tē-fīv') |
| Marine Corps Dictionary: Forty five |
| WordNet: forty-five |
The noun has one meaning:
Meaning #1:
a .45-caliber pistol
The adjective forty-five has one meaning:
Meaning #1:
being five more than forty
Synonyms: 45, xlv
| Wikipedia: 45 (number) |
| 45 | |
|---|---|
| Cardinal | forty-five |
| Ordinal | 45th (forty-fifth) |
| Factorization | ![]() |
| Prime | 1, 3, 5, 9, 15, 45 |
| Roman numeral | XLV |
| Binary | 1011012 |
| Octal | 558 |
| Duodecimal | 3912 |
| Hexadecimal | 2D16 |
45 (forty-five) is the natural number following 44 and followed by 46.
Contents |
Forty-five is a triangular number, a hexagonal and 16-gonal number, a Kaprekar number, and a Harshad number.
45 is the sixth positive integer with a prime factorization of the form p2q, with p and q being prime.
33 is the aliquot sum of 45 and the aliquot sequence of 45 is (45,33,15,9,4,3,1,0).
Since the greatest prime factor of 452 + 1 = 2026 is 1013, which is clearly more than 45 twice, 45 is a Størmer number.
The sum of all the digits is 45 (1+2+3+4+5+6+7+8+9=45)
Forty-five may also refer to:
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
| Best of the Web: forty-five |
Some good "forty-five" pages on the web:
Card Games www.pagat.com |
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Copyrights:
![]() | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more | |
![]() | Marine Corps Dictionary. Copyright © 2003 "Unofficial Dictionary for Marines" compiled and edited by Glenn B. Knight Read more | |
![]() | WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. Read more | |
![]() | Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "45 (number)". Read more |
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