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Difference between revisions of "billion"
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'''One billion''' (1,000,000,000) is the [[natural number]] following 9,999,999,99 and preceding 1,000,000,001. (The word "billion" can sometimes refer to 1,000,000,000,000, however in the [[long scale]] usage). | '''One billion''' (1,000,000,000) is the [[natural number]] following 9,999,999,99 and preceding 1,000,000,001. (The word "billion" can sometimes refer to 1,000,000,000,000, however in the [[long scale]] usage). | ||
In [[scientific notation]], it is written as 10<sup>9</sup>. Physical quantities can be expressed using the [[SI prefix]] giga. | In [[scientific notation]], it is written as 10<sup>9</sup>. Physical quantities can be expressed using the [[SI prefix]] giga. | ||
| − | == Selected 10-digit numbers ( | + | == Selected 10-digit numbers (1,000,000,001 - 9,999,999,999) == |
*'''1,023,456,789''' - smallest [[pandigital number]] | *'''1,023,456,789''' - smallest [[pandigital number]] | ||
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*'''1,234,567,890''' - pandigital number with the digits in order | *'''1,234,567,890''' - pandigital number with the digits in order | ||
*'''1,311,738,121''' - [[Pell number]] | *'''1,311,738,121''' - [[Pell number]] | ||
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[[Category:Numbers]] | [[Category:Numbers]] | ||
Latest revision as of 20:19, 30 September 2008
One billion (1,000,000,000) is the natural number following 9,999,999,99 and preceding 1,000,000,001. (The word "billion" can sometimes refer to 1,000,000,000,000, however in the long scale usage).
In scientific notation, it is written as 109. Physical quantities can be expressed using the SI prefix giga.
Selected 10-digit numbers (1,000,000,001 - 9,999,999,999)[edit]
- 1,023,456,789 - smallest pandigital number
- 1,073,676,287 - Carol number
- 1,073,807,359 - Kynea number
- 1,111,111,111 - repunit
- 1,129,760,415 - Motzkin number
- 1,134,903,170 - Fibonacci number
- 1,162,261,467 = 3^19
- 1,220,703,125 = 5^12
- 1,234,567,890 - pandigital number with the digits in order
- 1,311,738,121 - Pell number
