Q: What is the negative version of the number 21,690,839?
A: -21,690,839
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:
| 21,690,837 | 21,690,838 | 21,690,840 | 21,690,841 |
| -21,690,837 | -21,690,838 | -21,690,840 | -21,690,841 |