**How many zeroes are there in one billion?**

**9.**

The number 1 billion has 9 zeroes. Written in numerical notation, 1 billion is equivalent to 1,000,000,000. Ã‚ It is also sometimes called one thousand million and is written in scientific notation as 1Ãƒâ€”10^{9} or just 10^{9}. The word billion comes from the French word *byllion *which referred to ‘Ëœtwo’â„¢ + (m)illion and later altered into ‘Ëœa thousand million’â„¢.

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