BILLIONTH - 2 reference results
One billionth is the reciprocal of a billion, which means it has one of two definitions depending on whether the long scale or short scale definition is being used.
Short scale countries
In most English-speaking countries, a billionth is equal to 0.000 000 001, or 1 x 10-9 in scientific notation. The prefix for this number is nano, and is abbreviated as "n" (for example, in electronics, one nanofarad would be written as 1 nF).
Long scale countries
In most European countries, a billionth is equal to 0.000 000 000 001, or 1 x 10-12 in scientific notation. The prefix for this number is pico, and is abbreviated as "p" (for example, in electronics, one picofarad would be written as 1 pF).
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Last updated on Thursday May 01, 2008 at 08:25:02 PDT (GMT -0700)
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This article is licensed under the GNU Free Documentation License.
Last updated on Thursday May 01, 2008 at 08:25:02 PDT (GMT -0700)
View this article at Wikipedia.org - Edit this article at Wikipedia.org - Donate to the Wikimedia Foundation
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