Science Fair Project Encyclopedia
163 (number)
163 is the natural number following one hundred sixty-two and preceding one hundred sixty-four.
| Ordinal | One hundred [and] sixty-three |
| Cardinal | 163rd |
| Factorization | prime number |
| Roman numeral | CLX |
| Binary | 10100011 |
| Hexadecimal | A3 |
Given 163, the Mertens function returns 0. Multiplied by -1, it is a Heegner number.
163 figures in an approximation of π, in which 
. Also, it appears in the Ramanujan constant , in which 
almost equals the integer 262537412640768744. Martin Gardner famously asserted that this identity was exact in a 1975 April Fools' hoax in Scientific American; in fact the value is 262537412640768743.99999999999925007259...
163 is a strictly non-palindromic number, it is not palindromic in any base from base 2 to base 161.
One hundred sixty-three is also:
Last updated: 10-15-2005 13:40:42
12-19-2008 14:25:18
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details