Q: What is the negative version of the number 21,987,649?
A: -21,987,649
Negative numbers are usually written with - in front of them. They represent a number that is less than zero.
Here are more examples of negative numbers in sequence:
| 21,987,647 | 21,987,648 | 21,987,650 | 21,987,651 |
| -21,987,647 | -21,987,648 | -21,987,650 | -21,987,651 |