18028356990
18,028,356,990 is an even composite number composed of seven prime numbers multiplied together.
18028356990 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 18028356990:
2 × 3 × 5 × 7 × 139 × 719 × 859
See below for interesting mathematical facts about the number 18028356990 from the Numbermatics database.
Names of 18028356990
- Cardinal: 18028356990 can be written as Eighteen billion, twenty-eight million, three hundred fifty-six thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.802835699 × 1010
Factors of 18028356990
Divisors of 18028356990
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 139 210 278 417 695 719 834 859 973 1390 1438 1718 1946 2085 2157 2577 2919 3595 4170 4295 4314 4865 5033 5154 5838 6013 7190 8590 9730 10066 10785 12026 12885 14595 15099 18039 21570 25165 25770 29190 30065 30198 36078 50330 60130 75495 90195 99941 119401 150990 180390 199882 238802 299823 358203 499705 597005 599646 617621 699587 716406 835807 999410 1194010 1235242 1399174 1499115 1671614 1791015 1852863 2098761 2507421 2998230 3088105 3497935 3582030 3705726 4179035 4197522 4323347 5014842 6176210 6995870 8358070 8646694 9264315 10493805 12537105 12970041 18528630 20987610 21616735 25074210 25940082 43233470 64850205 85849319 129700410 171698638 257547957 429246595 515095914 600945233 858493190 1201890466 1287739785 1802835699 2575479570 3004726165 3605671398 6009452330 9014178495 18028356990
- Sum of all divisors σ(n): 49932288000
- Sum of proper divisors (its aliquot sum) s(n): 31903931010
- 18028356990 is an abundant number, because the sum of its proper divisors (31903931010) is greater than itself. Its abundance is 13875574020
Bases of 18028356990
- Binary: 100001100101001001011100101011111102
- Hexadecimal: 0x43292E57E
- Base-36: 8A5M9A6
Squares and roots of 18028356990
- 18028356990 squared (180283569902) is 325021655758881860100
- 18028356990 cubed (180283569903) is 5859606439502011537118037099000
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The
square root of 18028356990 is 134269.7173230063 -
The
cube root of 18028356990 is 2622.1169006149
Scales and comparisons
How big is 18028356990?- 18,028,356,990 seconds is equal to 573 years, 12 weeks, 5 days, 12 hours, 56 minutes, 30 seconds.
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To count from 1 to 18,028,356,990 would take you about one thousand, one hundred forty-six 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 18028356990 cubic inches would be around 218.5 feet tall.
Recreational maths with 18028356990
- 18028356990 backwards is 09965382081
- The number of decimal digits it has is: 11
- The sum of 18028356990's digits is 51
- More coming soon!
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The information we have on file for 18028356990 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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