489 in Roman Numerals
489
C (subtracted)DLXXXI (subtracted)X
four hundred eighty-nine
How CDLXXXIX is formed
| Place | Value | Symbols |
|---|---|---|
| Hundreds | 400 | C (subtracted)D |
| Tens | 80 | LXXX |
| Units | 9 | I (subtracted)X |
| Total | 489 | CDLXXXIX |
CDLXXXIX is written one place at a time, from the largest to the smallest: CD (400) + LXXX (80) + IX (9) = 489.
CD and IX are subtractive pairs: in each one the smaller symbol comes first and is taken away.
Common mistakes
Wrong: CCCCLXXXIX
Why isn't 489 written as CCCCLXXXIX?
A symbol can't be repeated four times in a row. 400 is CD (500 − 100), not CCCC, so 489 is CDLXXXIX.
Wrong: CDLXXXVIIII
Why isn't 489 written as CDLXXXVIIII?
A symbol can't be repeated four times in a row. 9 is IX (10 − 1), not VIIII, so 489 is CDLXXXIX.
Wrong: CCCCLXXXVIIII
Why isn't 489 written as CCCCLXXXVIIII?
No symbol can be repeated four times in a row, so CCCC and VIIII are not used: 400 = CD, 9 = IX. Together they make CDLXXXIX.
Numbers near 489
Properties of 489
- Prime factors
- 3 × 163
- Divisors
- 1, 3, 163, 489
- Even or odd
- Odd
- Prime number
- No
- Letters in CDLXXXIX
- 8
489,000 in Roman numerals
With a bar over it (vinculum), C̅D̅L̅X̅X̅X̅I̅X̅ means 489 × 1,000 = 489,000. How Roman numerals work