18989438464
18,989,438,464 is an even composite number composed of five prime numbers multiplied together.
18989438464 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 18989438464:
29 × 17 × 43 × 113 × 449
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 17 × 43 × 113 × 449)See below for interesting mathematical facts about the number 18989438464 from the Numbermatics database.
Names of 18989438464
- Cardinal: 18989438464 can be written as Eighteen billion, nine hundred eighty-nine million, four hundred thirty-eight thousand, four hundred sixty-four.
Scientific notation
- Scientific notation: 1.8989438464 × 1010
Factors of 18989438464
Divisors of 18989438464
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 4 8 16 17 32 34 43 64 68 86 113 128 136 172 226 256 272 344 449 452 512 544 688 731 898 904 1088 1376 1462 1796 1808 1921 2176 2752 2924 3592 3616 3842 4352 4859 5504 5848 7184 7232 7633 7684 8704 9718 11008 11696 14368 14464 15266 15368 19307 19436 22016 23392 28736 28928 30532 30736 38614 38872 46784 50737 57472 57856 61064 61472 77228 77744 82603 93568 101474 114944 122128 122944 154456 155488 165206 187136 202948 229888 244256 245888 308912 310976 328219 330412 374272 405896 488512 491776 617824 621952 656438 660824 811792 862529 977024 983552 1235648 1243904 1312876 1321648 1623584 1725058 1954048 2181691 2471296 2487808 2625752 2643296 3247168 3450116 3908096 4363382 4942592 5251504 5286592 6494336 6900232 8726764 9885184 10503008 10573184 12988672 13800464 17453528 21006016 21146368 25977344 27600928 34907056 37088747 42012032 42292736 55201856 69814112 74177494 84024064 110403712 139628224 148354988 168048128 220807424 279256448 296709976 441614848 558512896 593419952 1117025792 1186839904 2373679808 4747359616 9494719232 18989438464
- Sum of all divisors σ(n): 41564080800
- Sum of proper divisors (its aliquot sum) s(n): 22574642336
- 18989438464 is an abundant number, because the sum of its proper divisors (22574642336) is greater than itself. Its abundance is 3585203872
Bases of 18989438464
- Binary: 100011010111101101111010110000000002
- Hexadecimal: 0x46BDBD600
- Base-36: 8Q1TKHS
Squares and roots of 18989438464
- 18989438464 squared (189894384642) is 360598773178042679296
- 18989438464 cubed (189894384643) is 6847568213458335174457078841344
-
The
square root of 18989438464 is 137802.1714778109 -
The
cube root of 18989438464 is 2667.9071286585
Scales and comparisons
How big is 18989438464?- 18,989,438,464 seconds is equal to 603 years, 41 weeks, 6 days, 4 hours, 1 minute, 4 seconds.
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To count from 1 to 18,989,438,464 would take you about one thousand, two hundred seven 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 18989438464 cubic inches would be around 222.3 feet tall.
Recreational maths with 18989438464
- 18989438464 backwards is 46483498981
- 18989438464 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 18989438464's digits is 64
- More coming soon!
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The information we have on file for 18989438464 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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