235 (number)
235 is the integer after 234 and before 236.
| 235 | |
| Ordinal | Two hundred [and] thirty-five |
| Cardinal | 235th |
| Factorization |  |
| Roman numeral | CCXXXV |
| Binary | 11101011 |
| Hexadecimal | EB |
In mathematics
It is the second number of the tenth row of a skewed Fibonacci-Pascal triangle (sequence A037027 in OEIS).
235 is the concatenation of the base 10 representations of the first three primes, and thus it is a Smarandache–Wellin number.
235 is from the subset of numbers that have exactly two nontrivial prime factors, neither of which is two or three, namely 235 = 5 X 47. Thus, 235 is also a square-free number.
In other fields
235 is also:
- The atomic mass number of an important isotope of the element uranium, U-235, the fissile isotope which is used as the fuel for nuclear reactors and in some nuclear weapons. The atomic mass number results from each nucleus of U-245 containing 92 protons and 143 neutrons, and 92 + 143 = 235.
- The number of three interstate highways in the United States, located in the states of Iowa, Kansas, and Oklahoma. See: Interstate 235.
- The year 235 A.D., a year in which a new emperor of the Roman Empire was crowned.