|
|
|
|
|
53 (Number)53 is the natural number following 52 and preceding 54. In mathematics Fifty-three is the 16th smallest prime number. The next is fifty-nine. Fifty-three is also a Sophie Germain prime, and the sum of five consecutive primes (5 + 7 + 11 + 13 + 17). But 53 can not be expressed as the sum of any integer and its base 10 digits, making 53 a self number. 53 written in hexadecimal is 35, that is, the same characters used in the decimal representation, but reversed. Three multiples of 53 share this property: 371 = 17316, 5141 = 141516, 99481 = 1489916. 53 is a strictly non-palindromic number, it is not palindromic in any base from base 2 to base 51. In science In astronomy, - Messier object M53, a magnitude 8.5 globular cluster in the constellation Coma Berenices
- The New General Catalogue object NGC 53, a magnitude 12.6 barred spiral galaxy in the constellation Tucana
- The Saros number of the solar eclipse series which began on -1295 August 26 and ended on 220 February 21. The duration of Saros series 53 was 1514.5 years, and it contained 85 solar eclipses.
- The Saros number of the lunar eclipse series which began on -993 June 5 and ended on 287 July 12. The duration of Saros series 53 was 1280.1 years, and it contained 72 lunar eclipses.
In other fields Fifty-three is also: - The code for international direct dial phone calls to Cuba.
- In the title of the 1912 movie North of Fifty Three, remade in 1917.
- The number of short poems in the book Rumi Birdsong by Jelaluddin Rumi.
- The year AD 53, 53 BC, and 1953.
|
 |
|
| Copyright 2005-2009 OnPedia.com. All Rights Reserved |
|
|