18021202920
18,021,202,920 is an even composite number composed of six prime numbers multiplied together.
18021202920 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 18021202920:
23 × 33 × 5 × 7 × 17 × 140221
(2 × 2 × 2 × 3 × 3 × 3 × 5 × 7 × 17 × 140221)See below for interesting mathematical facts about the number 18021202920 from the Numbermatics database.
Names of 18021202920
- Cardinal: 18021202920 can be written as Eighteen billion, twenty-one million, two hundred two thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.802120292 × 1010
Factors of 18021202920
Divisors of 18021202920
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 17 18 20 21 24 27 28 30 34 35 36 40 42 45 51 54 56 60 63 68 70 72 84 85 90 102 105 108 119 120 126 135 136 140 153 168 170 180 189 204 210 216 238 252 255 270 280 306 315 340 357 360 378 408 420 459 476 504 510 540 595 612 630 680 714 756 765 840 918 945 952 1020 1071 1080 1190 1224 1260 1428 1512 1530 1785 1836 1890 2040 2142 2295 2380 2520 2856 3060 3213 3570 3672 3780 4284 4590 4760 5355 6120 6426 7140 7560 8568 9180 10710 12852 14280 16065 18360 21420 25704 32130 42840 64260 128520 140221 280442 420663 560884 701105 841326 981547 1121768 1261989 1402210 1682652 1963094 2103315 2383757 2523978 2804420 2944641 3365304 3785967 3926188 4206630 4767514 4907735 5047956 5608840 5889282 6309945 7151271 7571934 7852376 8413260 8833923 9535028 9815470 10095912 11778564 11918785 12619890 14302542 14723205 15143868 16686299 16826520 17667846 18929835 19070056 19630940 21453813 23557128 23837570 25239780 26501769 28605084 29446410 30287736 33372598 35335692 35756355 37859670 39261880 42907626 44169615 47675140 50058897 50479560 53003538 57210168 58892820 64361439 66745196 70671384 71512710 75719340 83431495 85815252 88339230 95350280 100117794 106007076 107269065 117785640 128722878 132508845 133490392 143025420 150176691 151438680 166862990 171630504 176678460 200235588 212014152 214538130 250294485 257445756 265017690 286050840 300353382 321807195 333725980 353356920 400471176 429076260 450530073 500588970 514891512 530035380 600706764 643614390 667451960 750883455 858152520 901060146 1001177940 1060070760 1201413528 1287228780 1501766910 1802120292 2002355880 2252650365 2574457560 3003533820 3604240584 4505300730 6007067640 9010601460 18021202920
- Sum of all divisors σ(n): 72691084800
- Sum of proper divisors (its aliquot sum) s(n): 54669881880
- 18021202920 is an abundant number, because the sum of its proper divisors (54669881880) is greater than itself. Its abundance is 36648678960
Bases of 18021202920
- Binary: 100001100100010010110111011111010002
- Hexadecimal: 0x43225BBE8
- Base-36: 8A1CX60
Squares and roots of 18021202920
- 18021202920 squared (180212029202) is 324763754683816526400
- 18021202920 cubed (180212029203) is 5852633524218158062303937088000
-
The
square root of 18021202920 is 134243.0740112875 -
The
cube root of 18021202920 is 2621.7700158023
Scales and comparisons
How big is 18021202920?- 18,021,202,920 seconds is equal to 573 years, 6 days, 17 hours, 42 minutes.
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To count from 1 to 18,021,202,920 would take you about one thousand, one hundred forty-six 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 18021202920 cubic inches would be around 218.5 feet tall.
Recreational maths with 18021202920
- 18021202920 backwards is 02920212081
- 18021202920 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 18021202920's digits is 27
- More coming soon!
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