842 in Roman Numerals
842 in Roman numerals is DCCCXLII, and is spelled eight hundred forty-two.
How to write 842 in Roman numerals
To write 842 in Roman numerals, combine DCCC (800), XL (40) and II (2) to get DCCCXLII.
The numeral DCCCXLII is read from left to right, from the largest value to the smallest, adding each symbol as you go. It uses subtractive notation — XL — where a smaller symbol placed before a larger one is subtracted rather than added (for example, XL means 50 − 10 = 40).
| Value | Roman |
|---|---|
| 800 | DCCC |
| 40 | XL |
| 2 | II |
| 842 | DCCCXLII |
Facts about the number 842
- 842 is an even number.
- 842 is a composite number. Its prime factorization is 2 × 421.
- The digits of 842 add up to 14.
- 842 has 4 divisors.
842 in other number systems
| Decimal | 842 |
| Roman | DCCCXLII |
| Binary | 1101001010 |
| Octal | 1512 |
| Hexadecimal | 34A |
Frequently asked questions
How do you write 842 in Roman numerals?
842 is written as DCCCXLII in Roman numerals.
What does the Roman numeral DCCCXLII mean?
DCCCXLII represents the number 842 (eight hundred forty-two).
Is 842 a prime number?
No, 842 is a composite number.
What is 842 in binary and hexadecimal?
842 is 1101001010 in binary and 34A in hexadecimal.
Related numbers
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