20821328640
20,821,328,640 is an even composite number composed of six prime numbers multiplied together.
20821328640 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of eight hundred sixty-four divisors.
Prime factorization of 20821328640:
28 × 35 × 5 × 7 × 73 × 131
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 5 × 7 × 73 × 131)See below for interesting mathematical facts about the number 20821328640 from the Numbermatics database.
Names of 20821328640
- Cardinal: 20821328640 can be written as Twenty billion, eight hundred twenty-one million, three hundred twenty-eight thousand, six hundred forty.
Scientific notation
- Scientific notation: 2.082132864 × 1010
Factors of 20821328640
Divisors of 20821328640
- Number of divisors d(n): 864
-
Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 32 35 36 40 42 45 48 54 56 60 63 64 70 72 73 80 81 84 90 96 105 108 112 120 126 128 131 135 140 144 146 160 162 168 180 189 192 210 216 219 224 240 243 252 256 262 270 280 288 292 315 320 324 336 360 365 378 384 393 405 420 432 438 448 480 486 504 511 524 540 560 567 576 584 630 640 648 655 657 672 720 730 756 768 786 810 840 864 876 896 917 945 960 972 1008 1022 1048 1080 1095 1120 1134 1152 1168 1179 1215 1260 1280 1296 1310 1314 1344 1440 1460 1512 1533 1572 1620 1680 1701 1728 1752 1792 1834 1890 1920 1944 1965 1971 2016 2044 2096 2160 2190 2240 2268 2304 2336 2358 2430 2520 2555 2592 2620 2628 2688 2751 2835 2880 2920 3024 3066 3144 3240 3285 3360 3402 3456 3504 3537 3668 3780 3840 3888 3930 3942 4032 4088 4192 4320 4380 4480 4536 4585 4599 4672 4716 4860 5040 5110 5184 5240 5256 5376 5502 5670 5760 5840 5895 5913 6048 6132 6288 6480 6570 6720 6804 6912 7008 7074 7336 7560 7665 7776 7860 7884 8064 8176 8253 8384 8505 8640 8760 8960 9072 9170 9198 9344 9432 9563 9720 9855 10080 10220 10368 10480 10512 10611 11004 11340 11520 11680 11790 11826 12096 12264 12576 12960 13140 13440 13608 13755 13797 14016 14148 14672 15120 15330 15552 15720 15768 16128 16352 16506 16768 17010 17280 17520 17685 17739 18144 18340 18396 18688 18864 19126 19440 19710 20160 20440 20736 20960 21024 21222 22008 22680 22995 23360 23580 23652 24192 24528 24759 25152 25920 26280 26880 27216 27510 27594 28032 28296 28689 29344 29565 30240 30660 31104 31440 31536 31833 32704 33012 33536 34020 34560 35040 35370 35478 36288 36680 36792 37728 38252 38880 39420 40320 40880 41265 41391 41920 42048 42444 44016 45360 45990 46720 47160 47304 47815 48384 49056 49518 50304 51840 52560 53055 54432 55020 55188 56064 56592 57378 58688 59130 60480 61320 62208 62880 63072 63666 65408 66024 66941 68040 68985 70080 70740 70956 72576 73360 73584 74277 75456 76504 77760 78840 80640 81760 82530 82782 83840 84096 84888 86067 88032 88695 90720 91980 93440 94320 94608 95630 98112 99036 100608 103680 105120 106110 108864 110040 110376 113184 114756 117376 118260 120960 122640 123795 124173 125760 126144 127332 130816 132048 133882 136080 137970 140160 141480 141912 143445 145152 146720 147168 148554 150912 153008 155520 157680 159165 163520 165060 165564 167680 168192 169776 172134 176064 177390 181440 183960 188640 189216 191260 196224 198072 200823 206955 210240 212220 217728 220080 220752 222831 226368 229512 234752 236520 241920 245280 247590 248346 251520 252288 254664 258201 264096 267764 272160 275940 280320 282960 283824 286890 293440 294336 297108 301824 306016 311040 315360 318330 327040 330120 331128 334705 339552 344268 352128 354780 362880 367920 371385 377280 378432 382520 392448 396144 401646 413910 420480 424440 430335 435456 440160 441504 445662 452736 459024 473040 490560 495180 496692 503040 504576 509328 516402 528192 535528 544320 551880 565920 567648 573780 586880 588672 594216 602469 612032 620865 630720 636660 654080 660240 662256 669410 679104 688536 704256 709560 725760 735840 742770 754560 756864 765040 774603 792288 803292 827820 840960 848880 860670 880320 883008 891324 905472 918048 946080 981120 990360 993384 1004115 1018656 1032804 1056384 1071056 1088640 1103760 1114155 1131840 1135296 1147560 1173760 1177344 1188432 1204938 1224064 1241730 1261440 1273320 1291005 1320480 1324512 1338820 1358208 1377072 1419120 1471680 1485540 1509120 1513728 1530080 1549206 1584576 1606584 1655640 1697760 1721340 1760640 1766016 1782648 1807407 1836096 1892160 1962240 1980720 1986768 2008230 2037312 2065608 2112768 2142112 2177280 2207520 2228310 2263680 2270592 2295120 2323809 2376864 2409876 2448128 2483460 2522880 2546640 2582010 2640960 2649024 2677640 2716416 2754144 2838240 2943360 2971080 3012345 3060160 3098412 3169152 3213168 3311280 3395520 3442680 3521280 3532032 3565296 3614814 3672192 3784320 3873015 3961440 3973536 4016460 4074624 4131216 4284224 4415040 4456620 4527360 4541184 4590240 4647618 4753728 4819752 4966920 5093280 5164020 5281920 5298048 5355280 5422221 5508288 5676480 5886720 5942160 6024690 6120320 6196824 6338304 6426336 6622560 6791040 6885360 7130592 7229628 7344384 7568640 7746030 7922880 7947072 8032920 8149248 8262432 8568448 8830080 8913240 9037035 9180480 9295236 9507456 9639504 9933840 10186560 10328040 10563840 10596096 10710560 10844442 11016576 11352960 11619045 11884320 12049380 12240640 12393648 12852672 13245120 13582080 13770720 14261184 14459256 15492060 15845760 15894144 16065840 16266663 16524864 17136896 17660160 17826480 18074070 18360960 18590472 19014912 19279008 19867680 20373120 20656080 21421120 21688884 22033152 22705920 23238090 23768640 24098760 24787296 25705344 26490240 27111105 27541440 28522368 28918512 30984120 31691520 31788288 32131680 32533326 33049728 35652960 36148140 36721920 37180944 38558016 39735360 40746240 41312160 42842240 43377768 46476180 47537280 48197520 49574592 51410688 52980480 54222210 55082880 57044736 57837024 61968240 64263360 65066652 66099456 71305920 72296280 74361888 77116032 79470720 81333315 82624320 85684480 86755536 92952360 95074560 96395040 99149184 108444420 110165760 115674048 123936480 128526720 130133304 142611840 144592560 148723776 154232064 158941440 162666630 165248640 173511072 185904720 192790080 198298368 216888840 231348096 247872960 257053440 260266608 285223680 289185120 297447552 325333260 330497280 347022144 371809440 385580160 433777680 462696192 495745920 520533216 578370240 594895104 650666520 694044288 743618880 771160320 867555360 991491840 1041066432 1156740480 1301333040 1388088576 1487237760 1735110720 2082132864 2313480960 2602666080 2974475520 3470221440 4164265728 5205332160 6940442880 10410664320 20821328640
- Sum of all divisors σ(n): 87210579456
- Sum of proper divisors (its aliquot sum) s(n): 66389250816
- 20821328640 is an abundant number, because the sum of its proper divisors (66389250816) is greater than itself. Its abundance is 45567922176
Bases of 20821328640
- Binary: 100110110010000110001000011000000002
- Hexadecimal: 0x4D90C4300
- Base-36: 9KCHC00
Squares and roots of 20821328640
- 20821328640 squared (208213286402) is 433527726334884249600
- 20821328640 cubed (208213286403) is 9026623264570607657281388544000
-
The
square root of 20821328640 is 144295.9758274637 -
The
cube root of 20821328640 is 2751.0774242113
Scales and comparisons
How big is 20821328640?- 20,821,328,640 seconds is equal to 662 years, 2 weeks, 5 days, 14 hours, 24 minutes.
-
To count from 1 to 20,821,328,640 would take you about one thousand, three hundred twenty-four 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 20821328640 cubic inches would be around 229.3 feet tall.
Recreational maths with 20821328640
- 20821328640 backwards is 04682312802
- 20821328640 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 20821328640's digits is 36
- More coming soon!
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The information we have on file for 20821328640 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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