172 (number)
172 (one hundred and seventy-two) is the natural number following 171 and preceding 173. It is a noncototient.
| Cardinal | One hundred [and] seventy-two |
| Ordinal | 172nd |
| Factorization | <math>2^2\cdot 43<math> |
| Roman numeral | CLXXII |
| Binary | 10101100 |
| Hexadecimal | AC |
- In aviation, and in particular in the aviation-frequency radio exchange (pronounced as one-seventy-two), the number 172 is associated with Cessna 172.
For the year, see 172 AD.
Categories: Integers