20721666368
20,721,666,368 is an even composite number composed of four prime numbers multiplied together.
20721666368 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred forty divisors.
Prime factorization of 20721666368:
26 × 13 × 234 × 89
(2 × 2 × 2 × 2 × 2 × 2 × 13 × 23 × 23 × 23 × 23 × 89)See below for interesting mathematical facts about the number 20721666368 from the Numbermatics database.
Names of 20721666368
- Cardinal: 20721666368 can be written as Twenty billion, seven hundred twenty-one million, six hundred sixty-six thousand, three hundred sixty-eight.
Scientific notation
- Scientific notation: 2.0721666368 × 1010
Factors of 20721666368
Divisors of 20721666368
- Number of divisors d(n): 140
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Complete list of divisors:
1 2 4 8 13 16 23 26 32 46 52 64 89 92 104 178 184 208 299 356 368 416 529 598 712 736 832 1058 1157 1196 1424 1472 2047 2116 2314 2392 2848 4094 4232 4628 4784 5696 6877 8188 8464 9256 9568 12167 13754 16376 16928 18512 19136 24334 26611 27508 32752 33856 37024 47081 48668 53222 55016 65504 74048 94162 97336 106444 110032 131008 158171 188324 194672 212888 220064 279841 316342 376648 389344 425776 440128 559682 612053 632684 753296 778688 851552 1082863 1119364 1224106 1265368 1506592 1703104 2165726 2238728 2448212 2530736 3013184 3637933 4331452 4477456 4896424 5061472 7275866 8662904 8954912 9792848 10122944 14077219 14551732 17325808 17909824 19585696 24905849 28154438 29103464 34651616 39171392 49811698 56308876 58206928 69303232 99623396 112617752 116413856 199246792 225235504 232827712 323776037 398493584 450471008 647552074 796987168 900942016 1295104148 1593974336 2590208296 5180416592 10360833184 20721666368
- Sum of all divisors σ(n): 46815611220
- Sum of proper divisors (its aliquot sum) s(n): 26093944852
- 20721666368 is an abundant number, because the sum of its proper divisors (26093944852) is greater than itself. Its abundance is 5372278484
Bases of 20721666368
- Binary: 100110100110001101110001001010000002
- Hexadecimal: 0x4D31B8940
- Base-36: 9IP583K
Squares and roots of 20721666368
- 20721666368 squared (207216663682) is 429387457066702311424
- 20721666368 cubed (207216663683) is 8897623627940129219302562988032
-
The
square root of 20721666368 is 143950.2218407461 -
The
cube root of 20721666368 is 2746.6810148915
Scales and comparisons
How big is 20721666368?- 20,721,666,368 seconds is equal to 658 years, 46 weeks, 2 hours, 26 minutes, 8 seconds.
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To count from 1 to 20,721,666,368 would take you about one thousand, three hundred seventeen 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 20721666368 cubic inches would be around 228.9 feet tall.
Recreational maths with 20721666368
- 20721666368 backwards is 86366612702
- The number of decimal digits it has is: 11
- The sum of 20721666368's digits is 47
- More coming soon!
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The information we have on file for 20721666368 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!
Keywords: Divisors of 20721666368, math, Factors of 20721666368, curriculum, school, college, exams, university, Prime factorization of 20721666368, STEM, science, technology, engineering, physics, economics, calculator, twenty billion, seven hundred twenty-one million, six hundred sixty-six thousand, three hundred sixty-eight.