21481123440
21,481,123,440 is an even composite number composed of seven prime numbers multiplied together.
What does the number 21481123440 look like?
This visualization shows the relationship between its 7 prime factors (large circles) and 320 divisors.
21481123440 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 21481123440:
24 × 3 × 5 × 7 × 41 × 181 × 1723
(2 × 2 × 2 × 2 × 3 × 5 × 7 × 41 × 181 × 1723)See below for interesting mathematical facts about the number 21481123440 from the Numbermatics database.
Names of 21481123440
- Cardinal: 21481123440 can be written as Twenty-one billion, four hundred eighty-one million, one hundred twenty-three thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.148112344 × 1010
Factors of 21481123440
Divisors of 21481123440
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 41 42 48 56 60 70 80 82 84 105 112 120 123 140 164 168 181 205 210 240 246 280 287 328 336 362 410 420 492 543 560 574 615 656 724 820 840 861 905 984 1086 1148 1230 1267 1435 1448 1640 1680 1722 1723 1810 1968 2172 2296 2460 2534 2715 2870 2896 3280 3444 3446 3620 3801 4305 4344 4592 4920 5068 5169 5430 5740 6335 6888 6892 7240 7421 7602 8610 8615 8688 9840 10136 10338 10860 11480 12061 12670 13776 13784 14480 14842 15204 17220 17230 19005 20272 20676 21720 22263 22960 24122 25340 25845 27568 29684 30408 34440 34460 36183 37105 38010 41352 43440 44526 48244 50680 51690 51947 59368 60305 60816 68880 68920 70643 72366 74210 76020 82704 89052 96488 101360 103380 103894 111315 118736 120610 137840 141286 144732 148420 152040 155841 178104 180915 192976 206760 207788 211929 222630 241220 259735 282572 289464 296840 304080 311682 311863 353215 356208 361830 413520 415576 423858 445260 482440 494501 519470 565144 578928 593680 623364 623726 706430 723660 779205 831152 847716 890520 935589 964880 989002 1038940 1059645 1130288 1246728 1247452 1412860 1447320 1483503 1558410 1559315 1695432 1781040 1871178 1978004 2077880 2119290 2183041 2472505 2493456 2494904 2825720 2894640 2967006 3116820 3118630 3390864 3742356 3956008 4155760 4238580 4366082 4677945 4945010 4989808 5651440 5934012 6233640 6237260 6549123 7417515 7484712 7912016 8477160 8732164 9355890 9890020 10915205 11868024 12467280 12474520 12786383 13098246 14835030 14969424 16954320 17464328 18711780 19780040 21830410 23736048 24949040 25572766 26196492 29670060 32745615 34928656 37423560 38359149 39560080 43660820 51145532 52392984 59340120 63931915 65491230 74847120 76718298 87321640 89504681 102291064 104785968 118680240 127863830 130982460 153436596 174643280 179009362 191795745 204582128 255727660 261964920 268514043 306873192 358018724 383591490 447523405 511455320 523929840 537028086 613746384 716037448 767182980 895046810 1022910640 1074056172 1342570215 1432074896 1534365960 1790093620 2148112344 2685140430 3068731920 3580187240 4296224688 5370280860 7160374480 10740561720 21481123440
- Sum of all divisors σ(n): 78436979712
- Sum of proper divisors (its aliquot sum) s(n): 56955856272
- 21481123440 is an abundant number, because the sum of its proper divisors (56955856272) is greater than itself. Its abundance is 35474732832
Bases of 21481123440
- Binary: 101000000000101111111101110011100002
- Hexadecimal: 0x5005FEE70
- Base-36: 9V9B0XC
Squares and roots of 21481123440
- 21481123440 squared (214811234402) is 461438664244517433600
- 21481123440 cubed (214811234403) is 9912220906625193334393603584000
-
The
square root of 21481123440 is 146564.4003160385 -
The
cube root of 21481123440 is 2779.8348607113
Scales and comparisons
How big is 21481123440?- 21,481,123,440 seconds is equal to 683 years, 1 week, 5 days, 2 hours, 44 minutes.
-
To count from 1 to 21,481,123,440 would take you about one thousand, three hundred sixty-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 21481123440 cubic inches would be around 231.7 feet tall.
Recreational maths with 21481123440
- 21481123440 backwards is 04432118412
- 21481123440 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21481123440's digits is 30
- More coming soon!
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