Q: What is the negative version of the number 20,809,015?
A: -20,809,015
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:
| 20,809,013 | 20,809,014 | 20,809,016 | 20,809,017 |
| -20,809,013 | -20,809,014 | -20,809,016 | -20,809,017 |