Q:
# How many zeros are there in one billion?

**The numeral one billion has nine zeros.** This number is equal to one thousand million. In scientific notation, one billion is written as 1x10 to the ninth power.

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When trying to get a feel for a number this large, it is helpful to put it in everyday terms. For example, to save $1 billion, a thrifty saver would have to deposit $100 in the bank each day for over 27,000 years. If a person wanted to count to one billion and could spit out numbers at the rate of three per second, it would still take over 95 years to finish.

There are two different scales to describe the number of zeros in a billion; the long scale has 12 zeros and the short scale has nine zeros. The long scale is common in Europe and South America, while the short scale is typically used in America, Arabic-speaking countries, and Russia.

The long scale definition describes that one billion is a million times larger than one million and that a billion means a million million. The short scale definition describes that the number one billion is a thousand times larger than one million and that a billion means a thousand million.

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