193 (number)
From Wikipedia, the free encyclopedia
193 is the natural number between 192 and 194. It is also a prime number.
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Ordinal | One hundred [and] ninety-three |
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Cardinal | 193rd | ||
Factorization | prime number | ||
Roman numeral | CXCIII | ||
Binary | 11000001 | ||
Hexadecimal | C1 |
[edit] In mathematics
193 is a prime number, the only odd prime p known for which 2 is not a primitive root of 4p2 + 1. 193 is a cuban prime, and a twin prime with 191. It is also a lucky prime. It can be written as the difference between the product and the sum of the first four primes.
[edit] In Calculations
193=208-15 193=156+37 193=386/2 193=9*(21+4/9)