21313663920
21,313,663,920 is an even composite number composed of five prime numbers multiplied together.
What does the number 21313663920 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 320 divisors.
21313663920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 21313663920:
24 × 33 × 5 × 233 × 811
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 23 × 23 × 23 × 811)See below for interesting mathematical facts about the number 21313663920 from the Numbermatics database.
Names of 21313663920
- Cardinal: 21313663920 can be written as Twenty-one billion, three hundred thirteen million, six hundred sixty-three thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.131366392 × 1010
Factors of 21313663920
Divisors of 21313663920
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 23 24 27 30 36 40 45 46 48 54 60 69 72 80 90 92 108 115 120 135 138 144 180 184 207 216 230 240 270 276 345 360 368 414 432 460 529 540 552 621 690 720 811 828 920 1035 1058 1080 1104 1242 1380 1587 1622 1656 1840 2070 2116 2160 2433 2484 2645 2760 3105 3174 3244 3312 4055 4140 4232 4761 4866 4968 5290 5520 6210 6348 6488 7299 7935 8110 8280 8464 9522 9732 9936 10580 12165 12167 12420 12696 12976 14283 14598 15870 16220 16560 18653 19044 19464 21160 21897 23805 24330 24334 24840 25392 28566 29196 31740 32440 36495 36501 37306 38088 38928 42320 43794 47610 48660 48668 49680 55959 57132 58392 60835 63480 64880 71415 72990 73002 74612 76176 87588 93265 95220 97320 97336 109485 109503 111918 114264 116784 121670 126960 142830 145980 146004 149224 167877 175176 182505 186530 190440 194640 194672 218970 219006 223836 228528 243340 279795 285660 291960 292008 298448 328509 335754 350352 365010 373060 380880 429019 437940 438012 447672 486680 503631 547515 559590 571320 583920 584016 657018 671508 730020 746120 839385 858038 875880 876024 895344 973360 1007262 1095030 1119180 1142640 1287057 1314036 1343016 1460040 1492240 1642545 1678770 1716076 1751760 1752048 2014524 2145095 2190060 2238360 2518155 2574114 2628072 2686032 2920080 3285090 3357540 3432152 3861171 4029048 4290190 4380120 4476720 5036310 5148228 5256144 6435285 6570180 6715080 6864304 7722342 8058096 8580380 8760240 9867437 10072620 10296456 11583513 12870570 13140360 13430160 15444684 17160760 19305855 19734874 20145240 20592912 23167026 25741140 26280720 29602311 30889368 34321520 38611710 39469748 40290480 46334052 49337185 51482280 57917565 59204622 61778736 77223420 78939496 88806933 92668104 98674370 102964560 115835130 118409244 148011555 154446840 157878992 177613866 185336208 197348740 231670260 236818488 266420799 296023110 308893680 355227732 394697480 444034665 463340520 473636976 532841598 592046220 710455464 789394960 888069330 926681040 1065683196 1184092440 1332103995 1420910928 1776138660 2131366392 2368184880 2664207990 3552277320 4262732784 5328415980 7104554640 10656831960 21313663920
- Sum of all divisors σ(n): 76845081600
- Sum of proper divisors (its aliquot sum) s(n): 55531417680
- 21313663920 is an abundant number, because the sum of its proper divisors (55531417680) is greater than itself. Its abundance is 34217753760
Bases of 21313663920
- Binary: 100111101100110010010110011101100002
- Hexadecimal: 0x4F664B3B0
- Base-36: 9SHLSC0
Squares and roots of 21313663920
- 21313663920 squared (213136639202) is 454272269694709766400
- 21313663920 cubed (213136639203) is 9682206484448644962991308288000
-
The
square root of 21313663920 is 145991.9995068223 -
The
cube root of 21313663920 is 2772.5924597105
Scales and comparisons
How big is 21313663920?- 21,313,663,920 seconds is equal to 677 years, 36 weeks, 5 days, 22 hours, 12 minutes.
-
To count from 1 to 21,313,663,920 would take you about one thousand, three hundred fifty-five 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 21313663920 cubic inches would be around 231 feet tall.
Recreational maths with 21313663920
- 21313663920 backwards is 02936631312
- 21313663920 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21313663920's digits is 36
- More coming soon!
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