A thousand millions.
1,000 x 1,000,000 = 1,000,000,000
Which is a 1 followed by 9 zeros
Using scientific notation: 1 × 109
There are around a billion cars in the world, perhaps as high as 1.5 billion.
The prefix "giga-" means a billion. Example: a gigameter is a billion meters (one million km), which is a little less then the diameter of the Sun.
(In many non-English speaking countries a billion means a million million, which is a 1 followed by 12 zeros, or 1 × 1012)
Below is a cube made of a million smaller cubes. If each of the small cubes is worth a thousand dollars, then the whole cube is worth a billion dollars.
