189 (number)
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| Cardinal | One hundred [and] eighty-nine |
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| Ordinal | 189th | ||
| Factorization |  |
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| Roman numeral | CLXXXIX | ||
| Binary | 10111101 | ||
| Hexadecimal | BD | ||
189 is the natural number following 188 and preceding 190.
If cubes of negative numbers are allowed, then 189 is the smallest positive integer that can be expressed as a sum of two cubes in two different ways: 63 + (-3)3 = 43 + 53 = 189. (If the negative numbers are disallowed, then the smallest such number is 1729.
189 is a centered cube number.
[edit] Uses
- The year 189
