189 in Roman Numerals
189 in Roman numerals is CLXXXIX, and is spelled one hundred eighty-nine.
How to write 189 in Roman numerals
To write 189 in Roman numerals, combine C (100), LXXX (80) and IX (9) to get CLXXXIX.
The numeral CLXXXIX is read from left to right, from the largest value to the smallest, adding each symbol as you go. It uses subtractive notation — IX — where a smaller symbol placed before a larger one is subtracted rather than added (for example, IX means 10 − 1 = 9).
| Value | Roman |
|---|---|
| 100 | C |
| 80 | LXXX |
| 9 | IX |
| 189 | CLXXXIX |
Facts about the number 189
- 189 is an odd number.
- 189 is a composite number. Its prime factorization is 33 × 7.
- The digits of 189 add up to 18.
- 189 has 8 divisors.
189 in other number systems
| Decimal | 189 |
| Roman | CLXXXIX |
| Binary | 10111101 |
| Octal | 275 |
| Hexadecimal | BD |
Frequently asked questions
How do you write 189 in Roman numerals?
189 is written as CLXXXIX in Roman numerals.
What does the Roman numeral CLXXXIX mean?
CLXXXIX represents the number 189 (one hundred eighty-nine).
Is 189 a prime number?
No, 189 is a composite number.
What is 189 in binary and hexadecimal?
189 is 10111101 in binary and BD in hexadecimal.
Related numbers
Or open 189 in the converter and browse the full Roman numerals chart.