odd, composite · 873rd positive integer
The number 873
873 is an odd composite number. It is the 873rd positive integer.
Quick reference
| Prime factorization | 3 × 3 × 97 |
| Divisors | 1, 3, 9, 97, 291, 873 |
| Binary | 1101101001 |
| Hexadecimal | 0x369 |
| Roman numeral | DCCCLXXIII |
| Digit sum | 18 |
| Properties | odd, composite |
Reading 873 in NumGrid context
The 873 record above pulls directly from classical number theory plus NumGrid solver-derived puzzle statistics. What follows is the per-entity context — how 873 sits in the broader integer properties and number-guessing puzzles distribution and which underlying factors drive the headline numbers.
The methodology behind every numeric value on this page is publicly documented on the classical number theory plus NumGrid solver-derived puzzle statistics portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for 873’s peers within positive integers within the NumGrid target pool. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Frequently asked
Is 873 a prime number?
No. 873 is composite. Its prime factorization is 3 × 3 × 97.
What are the factors of 873?
The factors (divisors) of 873 are 1, 3, 9, 97, 291, 873.
What is 873 in binary?
873 in binary is 1101101001. In hexadecimal it's 369.
What is 873 as a Roman numeral?
873 in Roman numerals is DCCCLXXIII.
What's the digit sum of 873?
Adding the digits of 873: 8 + 7 + 3 = 18.