even, composite · 218th positive integer
The number 218
218 is an even composite number. It is the 218th positive integer.
Quick reference
| Prime factorization | 2 × 109 |
| Divisors | 1, 2, 109, 218 |
| Binary | 11011010 |
| Hexadecimal | 0xDA |
| Roman numeral | CCXVIII |
| Digit sum | 11 |
| Properties | even, composite |
Reading 218 in NumGrid context
218 is one of the data points covered by this site’s integer properties and number-guessing puzzles dataset. The detail above comes directly from classical number theory plus NumGrid solver-derived puzzle statistics; the context that follows situates the headline numbers against the broader distribution across positive integers within the NumGrid target pool.
Every number on this page links back to classical number theory plus NumGrid solver-derived puzzle statistics; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for 218’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 218 a prime number?
No. 218 is composite. Its prime factorization is 2 × 109.
What are the factors of 218?
The factors (divisors) of 218 are 1, 2, 109, 218.
What is 218 in binary?
218 in binary is 11011010. In hexadecimal it's DA.
What is 218 as a Roman numeral?
218 in Roman numerals is CCXVIII.
What's the digit sum of 218?
Adding the digits of 218: 2 + 1 + 8 = 11.