21056840207520

Names of 21056840207520

• Cardinal: 21056840207520 can be written as Twenty-one trillion, fifty-six billion, eight hundred forty million, two hundred seven thousand, five hundred twenty.

Scientific notation

• Scientific notation: 2.105684020752 × 10¹³

Factors of 21056840207520

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 3537

Divisors of 21056840207520

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 31 32 39 40 48 52 53 60 62 65 78 80 93 96 104 106 120 124 130 155 156 159 160 186 195 208 212 240 248 260 265 310 312 318 372 390 403 416 424 465 480 496 520 530 620 624 636 689 744 773 780 795 806 848 930 992 1040 1060 1209 1240 1248 1272 1378 1488 1546 1560 1590 1612 1643 1696 1860 2015 2067 2080 2120 2319 2418 2480 2544 2657 2756 2976 3092 3120 3180 3224 3286 3445 3720 3865 4030 4134 4240 4638 4836 4929 4960 5088 5314 5512 6045 6184 6240 6360 6448 6572 6890 7440 7730 7971 8060 8215 8268 8480 9276 9672 9858 10049 10335 10628 11024 11595 12090 12368 12720 12896 13144 13285 13780 14880 15460 15942 16120 16430 16536 18552 19344 19716 20098 20670 21256 21359 22048 23190 23963 24180 24645 24736 25440 26288 26570 27560 30147 30920 31884 32240 32860 33072 34541 37104 38688 39432 39855 40196 40969 41340 42512 42718 46380 47926 48360 49290 50245 52576 53140 55120 60294 61840 63768 64077 64480 65720 66144 69082 71889 74208 78864 79710 80392 81938 82367 82680 85024 85436 92760 95852 96720 98580 100490 103623 106280 106795 110240 119815 120588 122907 123680 127536 128154 131440 138164 140821 143778 150735 157728 159420 160784 163876 164734 165360 170872 172705 185520 191704 193440 197160 200980 204845 207246 212560 213590 239630 241176 245814 247101 255072 256308 262880 276328 281642 287556 301470 311519 318840 320385 321568 327752 329468 330720 341744 345410 359445 371040 383408 394320 401960 409690 411835 414492 422463 425120 427180 479260 482352 491628 494202 512616 518115 532597 552656 563284 575112 602940 614535 623038 637680 640770 655504 658936 683488 690820 704105 718890 766816 788640 803920 819380 823670 828984 844926 854360 934557 958520 964704 983256 988404 1025232 1036230 1065194 1070771 1105312 1126568 1150224 1205880 1229070 1235505 1246076 1270039 1275360 1281540 1311008 1317872 1381640 1408210 1437780 1557595 1597791 1607840 1638760 1647340 1657968 1689852 1708720 1830673 1869114 1917040 1966512 1976808 2050464 2053861 2072460 2112315 2130388 2141542 2253136 2300448 2411760 2458140 2471010 2492152 2540078 2563080 2635744 2662985 2763280 2816420 2875560 3115190 3195582 3212313 3277520 3294680 3315936 3379704 3417440 3661346 3738228 3810117 3834080 3933024 3953616 4107722 4144920 4224630 4260776 4283084 4365451 4506272 4672785 4823520 4916280 4942020 4984304 5080156 5126160 5325970 5353855 5492019 5526560 5632840 5751120 6161583 6230380 6350195 6391164 6424626 6555040 6589360 6759408 7322692 7476456 7620234 7907232 7988955 8215444 8289840 8449260 8521552 8566168 8730902 9153365 9345570 9832560 9884040 9968608 10160312 10252320 10269305 10651940 10707710 10984038 11265680 11502240 12323166 12460760 12700390 12782328 12849252 13096353 13178720 13518816 14645384 14952912 15240468 15977910 16061565 16430888 16510507 16579680 16898520 17043104 17132336 17461804 18306730 18691140 19050585 19665120 19768080 20320624 20538610 21303880 21415420 21827255 21968076 22531360 24646332 24921520 25400780 25564656 25698504 26192706 26700193 27460095 29290768 29905824 30480936 30807915 31955820 32123130 32861776 33021014 33797040 34264672 34923608 36613460 37382280 38101170 39536160 40641248 41077220 42607760 42830840 43654510 43936152 49292664 49531521 49843040 50801560 51129312 51397008 52385412 53400386 54920190 56750863 58581536 60961872 61615830 63669691 63911640 64246260 65481765 65723552 66042028 67594080 69847216 73226920 74764560 76202340 80100579 82154440 82552535 85215520 85661680 87309020 87872304 98585328 99063042 101603120 102794016 104770824 106800772 108854633 109840380 113501726 121923744 123231660 127339382 127823280 128492520 130963530 132084056 133500965 139694432 146453840 149529120 152404680 160201158 164308880 165105070 170252589 171323360 174618040 175744608 191009073 197170656 198126084 203206240 209541648 213601544 217709266 219680760 227003452 246463320 247657605 254678764 255646560 256985040 261927060 264168112 267001930 283754315 292907680 304809360 318348455 320402316 326563899 328617760 330210140 340505178 349236080 382018146 396252168 400502895 419083296 427203088 435418532 439361520 454006904 492926640 495315210 509357528 513970080 523854120 528336224 534003860 544273165 567508630 609618720 636696910 640804632 653127798 660420280 681010356 698472160 764036292 792504336 801005790 827705983 851262945 854406176 870837064 878723040 908013808 955045365 985853280 990630420 1018715056 1047708240 1068007720 1088546330 1135017260 1273393820 1281609264 1306255596 1320840560 1362020712 1415110229 1528072584 1585008672 1602011580 1632819495 1655411966 1702525890 1741674128 1816027616 1910090730 1981260840 2037430112 2095416480 2136015440 2177092660 2270034520 2483117949 2546787640 2563218528 2612511192 2641681120 2724041424 2830220458 3056145168 3204023160 3265638990 3310823932 3374493623 3405051780 3483348256 3820181460 3962521680 4138529915 4245330687 4272030880 4354185320 4540069040 4966235898 5093575280 5225022384 5448082848 5660440916 6112290336 6408046320 6531277980 6621647864 6748987246 6810103560 7075551145 7640362920 7925043360 8277059830 8490661374 8708370640 9080138080 9932471796 10123480869 10187150560 10450044768 11320881832 12415589745 12816092640 13062555960 13243295728 13497974492 13620207120 14151102290 15280725840 16554119660 16872468115 16981322748 17416741280 19864943592 20246961738 21226653435 22641763664 24831179490 26125111920 26486591456 26995948984 27240414240 28302204580 30561451680 33108239320 33744936230 33962645496 39729887184 40493923476 42453306870 43868417099 45283527328 49662358980 50617404345 52250223840 53991897968 56604409160 66216478640 67489872460 67925290992 79459774368 80987846952 84906613740 87736834198 99324717960 101234808690 107983795936 113208818320 131605251297 132432957280 134979744920 135850581984 161975693904 169813227480 175473668396 198649435920 202469617380 219342085495 226417636640 263210502594 269959489840 323951387808 339626454960 350947336792 397298871840 404939234760 438684170990 526421005188 539918979680 658026256485 679252909920 701894673584 809878469520 877368341980 1052842010376 1316052512970 1403789347168 1619756939040 1754736683960 2105684020752 2632105025940 3509473367920 4211368041504 5264210051880 7018946735840 10528420103760 21056840207520
• Sum of all divisors σ(n): 75252252192768
• Sum of proper divisors (its aliquot sum) s(n): 54195411985248
• 21056840207520 is an abundant number, because the sum of its proper divisors (54195411985248) is greater than itself. Its abundance is 33138571777728

Bases of 21056840207520

• Binary: 100110010011010101101011110110000110010100000₂
• Hexadecimal: 0x1326AD7B0CA0
• Base-36: 7GPDMZKIO

Squares and roots of 21056840207520

• 21056840207520 squared (21056840207520²) is 443390519525030916664550400
• 21056840207520 cubed (21056840207520³) is 9336403319167852619093187270963499008000
• The square root of 21056840207520 is 4588773.2791586033
• The cube root of 21056840207520 is 27614.1110574693

Scales and comparisons

• 21,056,840,207,520 seconds is equal to 669,542 years, 20 weeks, 7 hours, 52 minutes.
• To count from 1 to 21,056,840,207,520 would take you about one million, six hundred seventy-three thousand, eight 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 21056840207520 cubic inches would be around 2301.2 feet tall.

Recreational maths with 21056840207520

• 21056840207520 backwards is 02570204865012
• The number of decimal digits it has is: 14
• The sum of 21056840207520's digits is 42
• More coming soon!