Science Fair Project Encyclopedia
133 (number)
133 is the number equal to 100 + 30 + 3.
| Cardinal | One hundred [and] thirty-three |
| Ordinal | 133rd |
| Factorization | 
|
| Divisors | 7, 19 |
| Roman numeral | CXXXIII |
| Binary | 10000101 |
| Hexadecimal | 85 |
It is the smallest n whose divisors (excluding n itself) added up divide φ(n). It is an octagonal number and a Harshad number. It is also a happy number.
Uses
Last updated: 07-25-2005 05:47:45
12-03-2008 10:22:39
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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