20721328636806

Names of 20721328636806

• Cardinal: 20721328636806 can be written as Twenty trillion, seven hundred twenty-one billion, three hundred twenty-eight million, six hundred thirty-six thousand, eight hundred six.

Scientific notation

• Scientific notation: 2.0721328636806 × 10¹³

Factors of 20721328636806

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 107

Divisors of 20721328636806

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 6 7 9 14 17 18 21 27 31 34 42 47 49 51 54 62 63 93 94 98 102 119 126 141 147 153 186 189 217 238 279 282 294 306 329 343 357 378 423 434 441 459 527 558 651 658 686 714 799 833 837 846 882 918 961 987 1029 1054 1071 1269 1302 1323 1457 1519 1581 1598 1666 1674 1922 1953 1974 2058 2142 2209 2303 2397 2499 2538 2646 2883 2914 2961 3038 3087 3162 3213 3689 3906 4371 4418 4557 4606 4743 4794 4998 5593 5766 5831 5859 5922 6174 6426 6627 6727 6909 7191 7378 7497 8649 8742 8883 9114 9261 9486 10199 10633 11067 11186 11662 11718 13113 13254 13454 13671 13818 14229 14382 14994 15463 16121 16337 16779 17298 17493 17766 18522 19881 20181 20398 20727 21266 21573 22134 22491 24769 25823 25947 26226 27342 28458 29791 30597 30926 31899 32242 32674 33201 33558 34986 37553 39151 39339 39762 40362 41013 41454 43146 44982 45167 46389 47089 48363 49011 49538 50337 51646 51894 52479 59582 59643 60543 61194 62181 63798 66402 68479 71393 74307 75106 77469 78302 78678 82026 89373 90334 91791 92778 94178 95697 96726 98022 99603 100674 104958 108241 112659 114359 117453 119286 121086 124362 135501 136958 139167 141267 142786 145089 147033 148614 151011 154938 157437 173383 178746 180761 181629 183582 191394 199206 205437 208537 214179 216482 222921 225318 228718 232407 234906 262871 268119 271002 274057 275373 278334 282534 287091 290178 294066 302022 314874 316169 324723 329623 337977 343077 346766 352359 361522 363258 406503 410874 417074 417501 423801 428358 435267 441099 445842 464814 479353 499751 506447 520149 525742 536238 542283 548114 550746 574182 616311 625611 632338 642537 649446 659246 668763 675954 686154 697221 704718 757687 767839 788613 800513 804357 813006 822171 835002 847602 870534 882198 948507 958706 974169 988869 999502 1012894 1013931 1029231 1040298 1057077 1084566 1164143 1213681 1219509 1232622 1251222 1271403 1285074 1337526 1394442 1400177 1438059 1459759 1499253 1515374 1519341 1535678 1560447 1577226 1601026 1608714 1626849 1644342 1840097 1848933 1876833 1897014 1927611 1948338 1977738 2027862 2058462 2114154 2122849 2213183 2273061 2303517 2328286 2365839 2401539 2427362 2439018 2466513 2542806 2800354 2845521 2876118 2919518 2922507 2966607 2998506 3038682 3087693 3120894 3253698 3355471 3492429 3545129 3641043 3680194 3697866 3753666 3855222 4200531 4245698 4314177 4379277 4426366 4497759 4546122 4558023 4607034 4681341 4731678 4803078 4880547 4933026 5374873 5520291 5603591 5630499 5691042 5845014 5933214 6175386 6368547 6639549 6710942 6819183 6910551 6984858 7090258 7097517 7204617 7282086 7399539 8149001 8401062 8495767 8536563 8628354 8758554 8899821 8995518 9116046 9362682 9761094 9801239 10066413 10218313 10477287 10635387 10749746 10923129 11040582 11207182 11260998 12601593 12737094 12880679 12942531 13137831 13279098 13493277 13638366 13674069 13821102 14195034 14409234 14799078 14859943 15492281 16124619 16298002 16560873 16810773 16991534 17073126 17799642 19105641 19602478 19918647 20132826 20436626 20457549 20731653 20954574 21270774 21613851 21846258 23488297 23803009 24447003 24815903 25203186 25487301 25761358 25885062 26275662 26986554 27348138 29403717 29719886 30199239 30654939 30984562 31431861 31906161 32249238 32769387 33121746 33621546 36088433 37624111 37804779 38211282 38642037 39413493 39837294 40915098 41463306 43227702 44579829 46476843 46976594 47606018 48373857 48894006 49631806 49682619 50432319 50974602 57043007 57316923 58807434 59755941 60398478 61309878 62863722 63812322 65538774 65808319 68608673 70464891 71409027 72176866 73341009 74447709 75248222 75609558 76461903 77284074 78826986 88211151 89159658 90597717 91964817 92953686 95718483 96747714 99365238 100864638 104019601 108265299 112872333 114086014 114633846 115926111 119511882 131616638 133739487 137217346 139430529 140929782 142818054 145121571 146682018 148895418 151296957 152923806 166621063 171129021 173711321 176422302 181195434 183929634 191436966 197424957 205826019 208039202 211394673 214227081 216530598 220023027 223343127 225744666 229385709 231852222 252619031 263368777 264633453 267478974 275894451 278861058 290243142 302593914 312058803 324795897 333242126 338616999 342258042 347422642 347778333 394849914 399301049 401218461 411652038 418291587 422789346 428454162 440046054 446686254 458771418 460658233 480260711 499863189 505238062 513387063 521133963 526737554 529266906 551788902 592274871 617478057 624117606 634184019 642681243 649591794 670029381 677233998 695556666 728137207 757857093 790106331 798602098 802436922 836583174 921316466 936176409 960521422 974387691 999726378 1015850997 1026774126 1042267926 1118741423 1166347441 1184549742 1197903147 1234956114 1268368038 1285362486 1340058762 1381974699 1440782133 1456274414 1499589567 1515714186 1540161189 1563401889 1580212662 1768333217 1776824613 1852434171 1872352818 1948775382 2031701994 2184411621 2237482846 2273571279 2332694882 2370318993 2395806294 2763949398 2808529227 2881564266 2999179134 3080322378 3126803778 3224607631 3356224269 3499042323 3536666434 3553649226 3593709441 3704868342 4145924097 4322346399 4368823242 4498768701 4547142558 4690205667 4740637986 5304999651 5617058454 6449215262 6553234863 6712448538 6820713837 6998084646 7110956979 7187418882 7831189961 8164432087 8291848194 8644692798 8997537402 9380411334 9673822893 10068672807 10497126969 10609999302 10781128323 12378332519 12437772291 12967039197 13106469726 13641427674 14221913958 15662379922 15914998953 16328864174 19347645786 19659704589 20137345614 20994253938 21562256646 22572253417 23493569883 24493296261 24756665038 24875544582 25934078394 29021468679 30206018421 31491380907 31829997906 37134997557 39319409178 45144506834 46987139766 47744996859 48986592522 54818329727 58042937358 60412036842 62982761814 67716760251 70480709649 73479888783 74269995114 87064406037 95489993718 109636659454 111404992671 135433520502 140961419298 146959777566 164454989181 174128812074 203150280753 211442128947 220439666349 222809985342 328909978362 334214978013 383728308089 406300561506 422884257894 440879332698 493364967543 609450842259 668429956026 767456616178 986729935086 1151184924267 1218901684518 1480094902629 2302369848534 2960189805258 3453554772801 6907109545602 10360664318403 20721328636806
• Sum of all divisors σ(n): 60030277632000
• Sum of proper divisors (its aliquot sum) s(n): 39308948995194
• 20721328636806 is an abundant number, because the sum of its proper divisors (39308948995194) is greater than itself. Its abundance is 18587620358388

Bases of 20721328636806

• Binary: 100101101100010001111011011101100001110000110₂
• Hexadecimal: 0x12D88F6EC386
• Base-36: 7CF8W27PI

Squares and roots of 20721328636806

• 20721328636806 squared (20721328636806²) is 429373460474516402257881636
• 20721328636806 cubed (20721328636806³) is 8897188582415085883500398020965181094616
• The square root of 20721328636806 is 4552068.6107313891
• The cube root of 20721328636806 is 27466.6609258925

Scales and comparisons

• 20,721,328,636,806 seconds is equal to 658,874 years, 8 weeks, 13 hours, 20 minutes, 6 seconds.
• To count from 1 to 20,721,328,636,806 would take you about one million, six hundred forty-seven thousand, one hundred eighty-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 20721328636806 cubic inches would be around 2288.9 feet tall.

Recreational maths with 20721328636806

• 20721328636806 backwards is 60863682312702
• 20721328636806 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 20721328636806's digits is 54
• More coming soon!