Search

The Online Encyclopedia and Dictionary

 
     
 

Encyclopedia

Dictionary

Quotes

   
 

50 (number)

(Redirected from Fifty)

50 ("fifty") is the number following 49 and preceding 51.

Cardinal fifty
Ordinal 50th (fiftieth)
Factorization 2 \cdot 5^2
Roman numeral L
Binary 110010
Hexadecimal 32
Hebrew נ (Nun)

In mathematics

Fifty is the smallest number that can be written as the sum of two squares in two distinct ways: 50 = 12 + 72 = 52 + 52. It is also the sum of three squares, 50 = 32 + 42 + 52. It is a Harshad number.

There is no answer to the equation φ(x) = 50, making 50 a nontotient. Nor is there an answer to the equation x - φ(x) = 50, making 50 a noncototient.

In astronomy

In other fields

Fifty is also:

Last updated: 05-14-2005 21:23:34