You can check http://en.wikipedia.org/wiki/1000000000_(number) http://en.wikipedia.org/wiki/1000000000_(number) "In modern (short scale) English usage, it is

You can check http://en.wikipedia.org/wiki/1000000000_(number) http://en.wikipedia.org/wiki/1000000000_(number) "In modern (short scale) English usage, it is usually called a billion (although in many other languages and long scale usage, a billion means 1,000,000,000,000 - a million millions)." "The term milliard can also be used to refer to 1,000,000,000; this terminology is rarely used in English, but often in other languages." Here is explained http://en.wikipedia.org/wiki/Long_and_short_scales http://en.wikipedia.org/wiki/Long_and_short_scales