Number
389 in Roman numerals
389 is written CCCLXXXIX
Type any other number or numeral below to convert it.
Above 3,999? Type the barred part in brackets, e.g. (IV)CC = 4,200.
How CCCLXXXIX is built
Roman numerals are written one decimal place at a time, largest first.
- CCChundreds · 3C written 3 times: 3 × 100 = 300.
- LXXXtens · 8L (50) plus XXX (30) makes 80.
- IXones · 9I before X means 10 − 1 = 9. This saves writing VIIII.
300 + 80 + 9 = 389
The pair IX uses subtraction: a smaller letter before a larger one is taken away from it. Only six pairs work this way: IV, IX, XL, XC, CD and CM. More on subtraction
Mistakes to avoid
- Not CCCLXXXVIIII (12 letters). That adds everything up without subtraction. The Romans sometimes wrote numbers this way, and clocks still show 4 as IIII, but today CCCLXXXIX (9 letters) is the standard.
About the number 389
- 389 is a prime number: only 1 and 389 divide it exactly.
- CCCLXXXIX has 9 letters. 31 of the numbers up to 1,000 have longer numerals.
Counting from 381 to 390
Every number from 381 to 390 starts CCC (300); only the ending changes.
| Number | Roman numeral |
|---|---|
| 381 | CCCLXXXI |
| 382 | CCCLXXXII |
| 383 | CCCLXXXIII |
| 384 | CCCLXXXIV |
| 385 | CCCLXXXV |
| 386 | CCCLXXXVI |
| 387 | CCCLXXXVII |
| 388 | CCCLXXXVIII |
| 389 | CCCLXXXIX |
| 390 | CCCXC |