21420737664
21,420,737,664 is an even composite number composed of four prime numbers multiplied together.
21420737664 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 21420737664:
27 × 3 × 17 × 3281363
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 17 × 3281363)See below for interesting mathematical facts about the number 21420737664 from the Numbermatics database.
Names of 21420737664
- Cardinal: 21420737664 can be written as Twenty-one billion, four hundred twenty million, seven hundred thirty-seven thousand, six hundred sixty-four.
Scientific notation
- Scientific notation: 2.1420737664 × 1010
Factors of 21420737664
Divisors of 21420737664
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 4 6 8 12 16 17 24 32 34 48 51 64 68 96 102 128 136 192 204 272 384 408 544 816 1088 1632 2176 3264 6528 3281363 6562726 9844089 13125452 19688178 26250904 39376356 52501808 55783171 78752712 105003616 111566342 157505424 167349513 210007232 223132684 315010848 334699026 420014464 446265368 630021696 669398052 892530736 1260043392 1338796104 1785061472 2677592208 3570122944 5355184416 7140245888 10710368832 21420737664
- Sum of all divisors σ(n): 60245843040
- Sum of proper divisors (its aliquot sum) s(n): 38825105376
- 21420737664 is an abundant number, because the sum of its proper divisors (38825105376) is greater than itself. Its abundance is 17404367712
Bases of 21420737664
- Binary: 100111111001100011010000100100000002
- Hexadecimal: 0x4FCC68480
- Base-36: 9U9CQYO
Squares and roots of 21420737664
- 21420737664 squared (214207376642) is 458848002069908176896
- 21420737664 cubed (214207376643) is 9828862679990032045857721810944
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The
square root of 21420737664 is 146358.2510964107 -
The
cube root of 21420737664 is 2777.2276099775
Scales and comparisons
How big is 21420737664?- 21,420,737,664 seconds is equal to 681 years, 5 weeks, 6 days, 4 hours, 54 minutes, 24 seconds.
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To count from 1 to 21,420,737,664 would take you about one thousand, three hundred sixty-two 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 21420737664 cubic inches would be around 231.4 feet tall.
Recreational maths with 21420737664
- 21420737664 backwards is 46673702412
- The number of decimal digits it has is: 11
- The sum of 21420737664's digits is 42
- More coming soon!
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The information we have on file for 21420737664 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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