49 in Roman Numerals
49 in Roman numerals is XLIX, and is spelled forty-nine.
How to write 49 in Roman numerals
To write 49 in Roman numerals, combine XL (40) and IX (9) to get XLIX.
The numeral XLIX is read from left to right, from the largest value to the smallest, adding each symbol as you go. It uses subtractive notation — IX and XL — where a smaller symbol placed before a larger one is subtracted rather than added (for example, IX means 10 − 1 = 9).
| Value | Roman |
|---|---|
| 40 | XL |
| 9 | IX |
| 49 | XLIX |
Facts about the number 49
- 49 is an odd number.
- 49 is a composite number. Its prime factorization is 72.
- The digits of 49 add up to 13.
- 49 has 3 divisors.
- 49 is a perfect square (72).
49 in other number systems
| Decimal | 49 |
| Roman | XLIX |
| Binary | 110001 |
| Octal | 61 |
| Hexadecimal | 31 |
Frequently asked questions
How do you write 49 in Roman numerals?
49 is written as XLIX in Roman numerals.
What does the Roman numeral XLIX mean?
XLIX represents the number 49 (forty-nine).
Is 49 a prime number?
No, 49 is a composite number.
What is 49 in binary and hexadecimal?
49 is 110001 in binary and 31 in hexadecimal.
Related numbers
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