Q: What is the negative version of the number 20,171,609?
A: -20,171,609
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:
| 20,171,607 | 20,171,608 | 20,171,610 | 20,171,611 |
| -20,171,607 | -20,171,608 | -20,171,610 | -20,171,611 |