21643405947648

Names of 21643405947648

• Cardinal: 21643405947648 can be written as Twenty-one trillion, six hundred forty-three billion, four hundred five million, nine hundred forty-seven thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 2.1643405947648 × 10¹³

Factors of 21643405947648

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 205

Divisors of 21643405947648

• Number of divisors d(n): 972
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 31 32 36 37 48 61 62 64 71 72 74 93 96 111 122 124 128 142 144 148 183 186 192 213 222 244 248 256 279 284 288 296 333 366 372 384 426 444 488 496 549 558 568 576 592 639 666 732 744 768 852 888 961 976 992 1098 1116 1136 1147 1152 1184 1278 1332 1464 1488 1704 1776 1891 1922 1952 1984 2196 2201 2232 2257 2272 2294 2304 2368 2556 2627 2664 2883 2928 2976 3408 3441 3552 3721 3782 3844 3904 3968 4331 4392 4402 4464 4514 4544 4588 4736 5112 5254 5328 5673 5766 5856 5952 6603 6771 6816 6882 7104 7442 7564 7688 7808 7881 7936 8649 8662 8784 8804 8928 9028 9088 9176 9472 10224 10323 10508 10656 11163 11346 11532 11712 11904 12993 13206 13542 13632 13764 14208 14884 15128 15376 15616 15762 17019 17298 17324 17568 17608 17856 18056 18176 18352 19809 20313 20448 20646 21016 21312 22326 22692 23064 23424 23643 23808 25986 26412 27084 27264 27528 28416 29768 30256 30752 31524 33489 34038 34596 34648 35136 35216 35557 35712 36112 36704 38979 39618 40626 40896 41292 42032 42624 44652 45384 46128 46848 47286 51972 52824 54168 54528 55056 58621 59536 60512 61504 63048 66978 68076 68231 69192 69296 69967 70272 70432 71114 71424 72224 73408 77958 79236 81252 81437 81792 82584 84064 85248 89304 90768 92256 94572 103944 105648 106671 108336 110112 115351 117242 119072 121024 123008 126096 133956 134261 136152 136462 137677 138384 138592 139934 140544 140864 142228 144448 146816 155916 158472 160247 162504 162874 163584 165168 168128 175863 178608 181536 184512 189144 204693 207888 209901 211296 213342 216672 220224 230702 234484 238144 242048 244311 246016 252192 264191 267912 268522 272304 272924 275354 276768 277184 279868 281728 284456 288896 293632 311832 316944 320013 320494 325008 325748 330336 336256 346053 351726 357216 363072 369024 378288 402783 409386 413031 415776 419802 422592 426684 433344 440448 461404 468968 476288 480741 484096 488622 504384 527589 528382 535824 537044 544608 545848 550708 553536 554368 559736 563456 568912 577792 614079 623664 629703 633888 640026 640988 650016 651496 660672 672512 692106 703452 714432 726144 732933 738048 756576 792573 805566 818772 826062 831552 839604 845184 853368 866688 880896 922808 937936 952576 961482 977244 1008768 1038159 1055178 1056764 1071648 1074088 1089216 1091696 1101416 1107072 1108736 1119472 1137824 1208349 1228158 1239093 1247328 1259406 1267776 1280052 1281976 1300032 1302992 1321344 1384212 1406904 1428864 1442223 1452288 1465866 1513152 1585146 1611132 1637544 1652124 1663104 1679208 1690368 1706736 1733376 1845616 1875872 1922964 1954488 2017536 2076318 2110356 2113528 2143296 2148176 2168977 2178432 2183392 2202832 2214144 2238944 2275648 2377719 2416698 2456316 2478186 2494656 2518812 2524547 2535552 2560104 2563952 2600064 2605984 2642688 2768424 2813808 2857728 2884446 2931732 3026304 3170292 3222264 3275088 3304248 3326208 3358416 3413472 3575881 3691232 3751744 3845928 3908976 4152636 4162091 4220712 4227056 4267987 4286592 4296352 4337954 4356864 4366784 4405664 4477888 4551296 4755438 4833396 4912632 4956372 4967657 4989312 5037624 5049094 5071104 5120208 5127904 5200128 5211968 5536848 5627616 5768892 5863464 6052608 6340584 6444528 6506931 6550176 6608496 6716832 6826944 7151762 7382464 7503488 7573641 7691856 7817952 8189921 8305272 8324182 8441424 8454112 8535974 8573184 8592704 8675908 8733568 8811328 8955776 9102592 9510876 9666792 9775067 9825264 9912744 9935314 9978624 10075248 10098188 10240416 10255808 10423936 10727643 11073696 11255232 11537784 11726928 12486273 12681168 12803961 12889056 13013862 13100352 13216992 13433664 13653888 14303524 14764928 14902971 15006976 15147282 15383712 15635904 16379842 16610544 16648364 16882848 16908224 17071948 17185408 17351816 17467136 17622656 17911552 19021752 19333584 19520793 19550134 19650528 19825488 19870628 20150496 20196376 20480832 20511616 20847872 21455286 22147392 22510464 22720923 23075568 23453856 24569763 24972546 25362336 25607922 25778112 26027724 26200704 26433984 26867328 27307776 28607048 29325201 29529856 29805942 30294564 30767424 31271808 32182929 32759684 33221088 33296728 33765696 33816448 34143896 34370816 34703632 35245312 37458819 38043504 38411883 38667168 39041586 39100268 39301056 39650976 39741256 40300992 40392752 40961664 41023232 42910572 44294784 44708913 45020928 45441846 46151136 46907712 49139526 49945092 50724672 51215844 51556224 52055448 52401408 52867968 53734656 57214096 58650402 59611884 60589128 61534848 62543616 64365858 65519368 66442176 66593456 67531392 67632896 68287792 69407264 73709289 74917638 76087008 76823766 77334336 78083172 78200536 78602112 79301952 79482512 80601984 80785504 81923328 85821144 87975603 88589568 89417826 90883692 92302272 93815424 98279052 99890184 101449344 102431688 103112448 104110896 105735936 114428192 117300804 119223768 121178256 123069696 128731716 131038736 132307597 132884352 133186912 135062784 136575584 138814528 147418578 149835276 152174016 153647532 153997367 154668672 156166344 156401072 157204224 158603904 158965024 161203968 161571008 171642288 175951206 178835652 181767384 184604544 187630848 196558104 199780368 202898688 204863376 208221792 228856384 234601608 238447536 242356512 253887551 257463432 262077472 264615194 265768704 266373824 273151168 277629056 294837156 299670552 303027077 304348032 307295064 307994734 309337344 312332688 312802144 317207808 317930048 323142016 343284576 351902412 357671304 363534768 369209088 393116208 396922791 399560736 409726752 416443584 457712768 461992101 469203216 476895072 484713024 507775102 514926864 524154944 529230388 532747648 546302336 555258112 589674312 599341104 606054154 608696064 614590128 615989468 624665376 625604288 635860096 646284032 686569152 703804824 715342608 727069536 761662653 786232416 793845582 799121472 819453504 832887168 909081231 915425536 923984202 938406432 953790144 969426048 1015550204 1029853728 1048309888 1058460776 1065495296 1092604672 1179348624 1190768373 1198682208 1212108308 1229180256 1231978936 1249330752 1251208576 1271720192 1373138304 1385976303 1407609648 1430685216 1454139072 1523325306 1572464832 1587691164 1598242944 1638907008 1665774336 1818162462 1847968404 1876812864 1907580288 1938852096 2031100408 2059707456 2096619776 2116921552 2284987959 2358697248 2381536746 2397364416 2424216616 2458360512 2463957872 2498661504 2502417152 2727243693 2746276608 2771952606 2815219296 2861370432 2908278144 3046650612 3144929664 3175382328 3196485888 3277814016 3636324924 3695936808 3753625728 3815160576 4062200816 4119414912 4233843104 4569975918 4717394496 4763073492 4794728832 4848433232 4916721024 4927915744 4997323008 5454487386 5543905212 5630438592 5722740864 5816556288 6093301224 6289859328 6350764656 7272649848 7391873616 7507251456 8124401632 8238829824 8467686208 9139951836 9393839387 9434788992 9526146984 9589457664 9696866464 9833442048 9855831488 10908974772 11087810424 11260877184 11445481728 12186602448 12701529312 14545299696 14783747232 16248803264 16935372416 18279903672 18787678774 18869577984 19052293968 19393732928 19711662976 21817949544 22175620848 22521754368 24373204896 25403058624 28181518161 29090599392 29567494464 32497606528 33870744832 36559807344 37575357548 38104587936 38787465856 39423325952 43635899088 44351241696 48746409792 50806117248 56363036322 58181198784 59134988928 64995213056 73119614688 75150715096 76209175872 77574931712 84544554483 87271798176 88702483392 97492819584 101612234496 112726072644 116362397568 118269977856 146239229376 150301430192 152418351744 169089108966 174543596352 177404966784 194985639168 225452145288 232724795136 292478458752 300602860384 304836703488 338178217932 349087192704 354809933568 450904290576 584956917504 601205720768 676356435864 698174385408 901808581152 1202411441536 1352712871728 1803617162304 2404822883072 2705425743456 3607234324608 5410851486912 7214468649216 10821702973824 21643405947648
• Sum of all divisors σ(n): 68275664441712
• Sum of proper divisors (its aliquot sum) s(n): 46632258494064
• 21643405947648 is an abundant number, because the sum of its proper divisors (46632258494064) is greater than itself. Its abundance is 24988852546416

Bases of 21643405947648

• Binary: 100111010111100111111100001011111001100000000₂
• Hexadecimal: 0x13AF3F85F300
• Base-36: 7O6UD3280

Squares and roots of 21643405947648

• 21643405947648 squared (21643405947648²) is 468437021014684820916731904
• 21643405947648 cubed (21643405947648³) is 10138572606727740616977341046792275361792
• The square root of 21643405947648 is 4652247.4082585075
• The cube root of 21643405947648 is 27868.1753865857

Scales and comparisons

• 21,643,405,947,648 seconds is equal to 688,193 years, 18 weeks, 5 days, 15 hours, 40 minutes, 48 seconds.
• To count from 1 to 21,643,405,947,648 would take you about one million, seven hundred twenty thousand, four hundred eighty-three 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 21643405947648 cubic inches would be around 2322.3 feet tall.

Recreational maths with 21643405947648

• 21643405947648 backwards is 84674950434612
• The number of decimal digits it has is: 14
• The sum of 21643405947648's digits is 63
• More coming soon!