21385640016
21,385,640,016 is an even composite number composed of six prime numbers multiplied together.
21385640016 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 21385640016:
24 × 32 × 13 × 41 × 79 × 3527
(2 × 2 × 2 × 2 × 3 × 3 × 13 × 41 × 79 × 3527)See below for interesting mathematical facts about the number 21385640016 from the Numbermatics database.
Names of 21385640016
- Cardinal: 21385640016 can be written as Twenty-one billion, three hundred eighty-five million, six hundred forty thousand and sixteen.
Scientific notation
- Scientific notation: 2.1385640016 × 1010
Factors of 21385640016
Divisors of 21385640016
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 3 4 6 8 9 12 13 16 18 24 26 36 39 41 48 52 72 78 79 82 104 117 123 144 156 158 164 208 234 237 246 312 316 328 369 468 474 492 533 624 632 656 711 738 936 948 984 1027 1066 1264 1422 1476 1599 1872 1896 1968 2054 2132 2844 2952 3081 3198 3239 3527 3792 4108 4264 4797 5688 5904 6162 6396 6478 7054 8216 8528 9243 9594 9717 10581 11376 12324 12792 12956 14108 16432 18486 19188 19434 21162 24648 25584 25912 28216 29151 31743 36972 38376 38868 42107 42324 45851 49296 51824 56432 58302 63486 73944 76752 77736 84214 84648 91702 116604 126321 126972 137553 144607 147888 155472 168428 169296 183404 233208 252642 253944 275106 278633 289214 336856 366808 378963 412659 433821 466416 505284 507888 550212 557266 578428 673712 733616 757926 825318 835899 867642 1010568 1100424 1114532 1156856 1301463 1515852 1650636 1671798 1735284 1879891 2021136 2200848 2229064 2313712 2507697 2602926 3031704 3301272 3343596 3470568 3622229 3759782 4458128 5015394 5205852 5639673 6063408 6602544 6687192 6941136 7244458 7519564 10030788 10411704 10866687 11279346 11423953 13374384 14488916 15039128 16919019 20061576 20823408 21733374 22558692 22847906 28977832 30078256 32600061 33838038 34271859 40123152 43466748 45117384 45695812 57955664 65200122 67676076 68543718 86933496 90234768 91391624 102815577 130400244 135352152 137087436 148511389 173866992 182783248 205631154 260800488 270704304 274174872 297022778 411262308 445534167 521600976 548349744 594045556 822524616 891068334 1188091112 1336602501 1645049232 1782136668 2376182224 2673205002 3564273336 5346410004 7128546672 10692820008 21385640016
- Sum of all divisors σ(n): 66880719360
- Sum of proper divisors (its aliquot sum) s(n): 45495079344
- 21385640016 is an abundant number, because the sum of its proper divisors (45495079344) is greater than itself. Its abundance is 24109439328
Bases of 21385640016
- Binary: 100111110101010111011111000010100002
- Hexadecimal: 0x4FAAEF850
- Base-36: 9TOGHG0
Squares and roots of 21385640016
- 21385640016 squared (213856400162) is 457345598893940480256
- 21385640016 cubed (213856400163) is 9780628340847738874484971524096
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The
square root of 21385640016 is 146238.2987318985 -
The
cube root of 21385640016 is 2775.7099616139
Scales and comparisons
How big is 21385640016?- 21,385,640,016 seconds is equal to 679 years, 51 weeks, 5 days, 23 hours, 33 minutes, 36 seconds.
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To count from 1 to 21,385,640,016 would take you about one thousand, three hundred fifty-nine 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 21385640016 cubic inches would be around 231.3 feet tall.
Recreational maths with 21385640016
- 21385640016 backwards is 61004658312
- 21385640016 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21385640016's digits is 36
- More coming soon!
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"Number 21385640016 - Facts about the integer". Numbermatics.com. 2024. Web. 27 May 2024.
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The information we have on file for 21385640016 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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