A billion is a number represented as 1,000,000,000, which is one followed by nine zeros. It is equivalent to one thousand million or 10910^9109 (ten to the ninth power) in the short scale numbering system commonly used in the United States and most English-speaking countries today.
Additional Details
- One billion has 9 zeros.
- It can also be expressed as 1,000 millions.
- In the Indian numbering system, one billion is equal to 100 crores or 1 arab.
- Historically, in British English, a billion used to mean one million million (which is 101210^{12}1012), but now the short scale definition of one thousand million is universally used in English.
- In scientific notation, 1 billion is written as 1×1091\times 10^91×109.
This number is commonly used when describing large quantities in economics, science, and astronomy.
