81423835120
81,423,835,120 is an even composite number composed of six prime numbers multiplied together.
81423835120 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 81423835120:
24 × 5 × 17 × 127 × 197 × 2393
(2 × 2 × 2 × 2 × 5 × 17 × 127 × 197 × 2393)See below for interesting mathematical facts about the number 81423835120 from the Numbermatics database.
Names of 81423835120
- Cardinal: 81423835120 can be written as Eighty-one billion, four hundred twenty-three million, eight hundred thirty-five thousand, one hundred twenty.
Scientific notation
- Scientific notation: 8.142383512 × 1010
Factors of 81423835120
Divisors of 81423835120
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 4 5 8 10 16 17 20 34 40 68 80 85 127 136 170 197 254 272 340 394 508 635 680 788 985 1016 1270 1360 1576 1970 2032 2159 2393 2540 3152 3349 3940 4318 4786 5080 6698 7880 8636 9572 10160 10795 11965 13396 15760 16745 17272 19144 21590 23930 25019 26792 33490 34544 38288 40681 43180 47860 50038 53584 66980 81362 86360 95720 100076 125095 133960 162724 172720 191440 200152 203405 250190 267920 303911 325448 400304 406810 425323 471421 500380 607822 650896 813620 850646 942842 1000760 1215644 1519555 1627240 1701292 1885684 2001520 2126615 2357105 2431288 3039110 3254480 3402584 3771368 4253230 4714210 4862576 5166487 6078220 6805168 7542736 8014157 8506460 9428420 10332974 12156440 16028314 17012920 18856840 20665948 24312880 25832435 32056628 34025840 37713680 40070785 41331896 51664870 59870467 64113256 80141570 82663792 103329740 119740934 128226512 160283140 206659480 239481868 299352335 320566280 413318960 478963736 598704670 641132560 957927472 1017797939 1197409340 2035595878 2394818680 4071191756 4789637360 5088989695 8142383512 10177979390 16284767024 20355958780 40711917560 81423835120
- Sum of all divisors σ(n): 203134998528
- Sum of proper divisors (its aliquot sum) s(n): 121711163408
- 81423835120 is an abundant number, because the sum of its proper divisors (121711163408) is greater than itself. Its abundance is 40287328288
Bases of 81423835120
- Binary: 10010111101010011110100011111111100002
- Hexadecimal: 0x12F53D1FF0
- Base-36: 11ELND9S
Squares and roots of 81423835120
- 81423835120 squared (814238351202) is 6629840925648945414400
- 81423835120 cubed (814238351203) is 539827074401867910423985673728000
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The
square root of 81423835120 is 285348.6203225801 -
The
cube root of 81423835120 is 4334.2822039397
Scales and comparisons
How big is 81423835120?- 81,423,835,120 seconds is equal to 2,589 years, 1 week, 2 days, 11 hours, 58 minutes, 40 seconds.
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To count from 1 to 81,423,835,120 would take you about five thousand, one hundred seventy-eight 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 81423835120 cubic inches would be around 361.2 feet tall.
Recreational maths with 81423835120
- 81423835120 backwards is 02153832418
- The number of decimal digits it has is: 11
- The sum of 81423835120's digits is 37
- More coming soon!
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