29 in Roman Numerals
29 in Roman numerals is XXIX, and is spelled twenty-nine.
How to write 29 in Roman numerals
To write 29 in Roman numerals, combine XX (20) and IX (9) to get XXIX.
The numeral XXIX 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 |
|---|---|
| 20 | XX |
| 9 | IX |
| 29 | XXIX |
Facts about the number 29
- 29 is an odd number.
- 29 is a prime number: it has no divisors other than 1 and itself.
- The digits of 29 add up to 11.
- 29 has 2 divisors.
29 in other number systems
| Decimal | 29 |
| Roman | XXIX |
| Binary | 11101 |
| Octal | 35 |
| Hexadecimal | 1D |
Frequently asked questions
How do you write 29 in Roman numerals?
29 is written as XXIX in Roman numerals.
What does the Roman numeral XXIX mean?
XXIX represents the number 29 (twenty-nine).
Is 29 a prime number?
Yes, 29 is a prime number.
What is 29 in binary and hexadecimal?
29 is 11101 in binary and 1D in hexadecimal.
Related numbers
Or open 29 in the converter and browse the full Roman numerals chart.