12721991000
12,721,991,000 is an even composite number composed of four prime numbers multiplied together.
12721991000 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 12721991000:
23 × 53 × 83 × 153277
(2 × 2 × 2 × 5 × 5 × 5 × 83 × 153277)See below for interesting mathematical facts about the number 12721991000 from the Numbermatics database.
Names of 12721991000
- Cardinal: 12721991000 can be written as Twelve billion, seven hundred twenty-one million, nine hundred ninety-one thousand.
Scientific notation
- Scientific notation: 1.2721991 × 1010
Factors of 12721991000
Divisors of 12721991000
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 4 5 8 10 20 25 40 50 83 100 125 166 200 250 332 415 500 664 830 1000 1660 2075 3320 4150 8300 10375 16600 20750 41500 83000 153277 306554 613108 766385 1226216 1532770 3065540 3831925 6131080 7663850 12721991 15327700 19159625 25443982 30655400 38319250 50887964 63609955 76638500 101775928 127219910 153277000 254439820 318049775 508879640 636099550 1272199100 1590248875 2544398200 3180497750 6360995500 12721991000
- Sum of all divisors σ(n): 30128323680
- Sum of proper divisors (its aliquot sum) s(n): 17406332680
- 12721991000 is an abundant number, because the sum of its proper divisors (17406332680) is greater than itself. Its abundance is 4684341680
Bases of 12721991000
- Binary: 10111101100100101000101101010110002
- Hexadecimal: 0x2F64A2D58
- Base-36: 5UECF2W
Squares and roots of 12721991000
- 12721991000 squared (127219910002) is 161849055004081000000
- 12721991000 cubed (127219910003) is 2059042221120423445271000000000
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The
square root of 12721991000 is 112791.8037802391 -
The
cube root of 12721991000 is 2334.4524269027
Scales and comparisons
How big is 12721991000?- 12,721,991,000 seconds is equal to 404 years, 27 weeks, 6 hours, 23 minutes, 20 seconds.
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To count from 1 to 12,721,991,000 would take you about eight hundred nine years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 12721991000 cubic inches would be around 194.5 feet tall.
Recreational maths with 12721991000
- 12721991000 backwards is 00019912721
- The number of decimal digits it has is: 11
- The sum of 12721991000's digits is 32
- More coming soon!
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The information we have on file for 12721991000 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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