18398798990
18,398,798,990 is an even composite number composed of six prime numbers multiplied together.
18398798990 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 18398798990:
2 × 5 × 113 × 13 × 113 × 941
(2 × 5 × 11 × 11 × 11 × 13 × 113 × 941)See below for interesting mathematical facts about the number 18398798990 from the Numbermatics database.
Names of 18398798990
- Cardinal: 18398798990 can be written as Eighteen billion, three hundred ninety-eight million, seven hundred ninety-eight thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.839879899 × 1010
Factors of 18398798990
Divisors of 18398798990
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 5 10 11 13 22 26 55 65 110 113 121 130 143 226 242 286 565 605 715 941 1130 1210 1243 1331 1430 1469 1573 1882 2486 2662 2938 3146 4705 6215 6655 7345 7865 9410 10351 12233 12430 13310 13673 14690 15730 16159 17303 20702 24466 27346 32318 34606 51755 61165 68365 80795 86515 103510 106333 113861 122330 134563 136730 150403 161590 173030 177749 212666 227722 269126 300806 355498 531665 569305 672815 752015 888745 1063330 1138610 1169663 1252471 1345630 1382329 1480193 1504030 1777490 1955239 2339326 2504942 2764658 2960386 3910478 5848315 6262355 6911645 7400965 9776195 11696630 12524710 12866293 13823290 14801930 15205619 16282123 19552390 25732586 30411238 32564246 64331465 76028095 81410615 128662930 141529223 152056190 162821230 167261809 283058446 334523618 707646115 836309045 1415292230 1672618090 1839879899 3679759798 9199399495 18398798990
- Sum of all divisors σ(n): 39618440064
- Sum of proper divisors (its aliquot sum) s(n): 21219641074
- 18398798990 is an abundant number, because the sum of its proper divisors (21219641074) is greater than itself. Its abundance is 2820842084
Bases of 18398798990
- Binary: 100010010001010011101100100100011102
- Hexadecimal: 0x448A7648E
- Base-36: 8GA645Q
Squares and roots of 18398798990
- 18398798990 squared (183987989902) is 338515804274425020100
- 18398798990 cubed (183987989903) is 6228284237783328742646609699000
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The
square root of 18398798990 is 135642.1726086691 -
The
cube root of 18398798990 is 2639.9548024669
Scales and comparisons
How big is 18398798990?- 18,398,798,990 seconds is equal to 585 years, 1 week, 2 days, 1 hour, 29 minutes, 50 seconds.
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To count from 1 to 18,398,798,990 would take you about one thousand, one hundred seventy 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 18398798990 cubic inches would be around 220 feet tall.
Recreational maths with 18398798990
- 18398798990 backwards is 09989789381
- The number of decimal digits it has is: 11
- The sum of 18398798990's digits is 71
- More coming soon!
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The information we have on file for 18398798990 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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