Definition:Billion/Long Scale
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Definition
Billion is a name for $10^{12}$ in the long scale system:
- One billion $= 10^{6 \times 2}$
Also defined as
In the short scale system:
- One billion $= 10^{3 \times 2 + 3} = 10^9$
Also see
Linguistic Note
The word billion derives from the prefix bi-, meaning twofold, and million, originating as the number $1 \, 000 \, 000$ to the power of $2$.
Sources
- 1989: Ephraim J. Borowski and Jonathan M. Borwein: Dictionary of Mathematics ... (previous) ... (next): billion: 1. (in UK and Germany)
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): billion
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): billion
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): billion