Q: What is the negative version of the number 21,513,019?
A: -21,513,019
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:
| 21,513,017 | 21,513,018 | 21,513,020 | 21,513,021 |
| -21,513,017 | -21,513,018 | -21,513,020 | -21,513,021 |