21978055018656

Names of 21978055018656

• Cardinal: 21978055018656 can be written as Twenty-one trillion, nine hundred seventy-eight billion, fifty-five million, eighteen thousand, six hundred fifty-six.

Scientific notation

• Scientific notation: 2.1978055018656 × 10¹³

Factors of 21978055018656

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 532

Divisors of 21978055018656

• Number of divisors d(n): 1440
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 19 22 24 27 32 33 36 38 44 48 54 57 66 72 76 81 88 96 99 108 113 114 121 127 132 144 152 162 171 176 198 209 216 226 228 242 254 257 264 288 297 304 324 339 342 352 363 381 396 418 432 452 456 484 508 513 514 528 594 608 627 648 678 684 726 762 771 792 836 864 891 904 912 968 1016 1017 1026 1028 1056 1089 1143 1188 1243 1254 1296 1356 1368 1397 1452 1524 1539 1542 1584 1672 1782 1808 1824 1881 1936 2032 2034 2052 2056 2147 2178 2286 2299 2313 2376 2413 2486 2508 2592 2712 2736 2794 2827 2904 3048 3051 3078 3084 3168 3267 3344 3429 3564 3616 3729 3762 3872 4064 4068 4104 4112 4191 4294 4356 4572 4598 4626 4752 4826 4883 4972 5016 5424 5472 5588 5643 5654 5808 6096 6102 6156 6168 6441 6534 6688 6858 6897 6939 7128 7239 7458 7524 8136 8208 8224 8382 8481 8588 8712 9144 9153 9196 9252 9504 9652 9766 9801 9944 10032 10287 10848 11176 11187 11286 11308 11616 12192 12204 12312 12336 12573 12882 13068 13673 13716 13794 13878 14256 14351 14478 14649 14916 15048 15367 16272 16416 16764 16929 16962 17176 17424 18288 18306 18392 18504 19304 19323 19532 19602 19888 20064 20574 20691 20817 21717 22352 22374 22572 22616 23617 24408 24624 24672 25146 25443 25764 26136 26543 27346 27432 27588 27756 28512 28702 28956 29041 29298 29832 30096 30734 31097 32544 32639 33528 33561 33858 33924 34352 34848 36576 36612 36784 37008 37719 38608 38646 39064 39204 39776 41019 41148 41382 41634 43053 43434 43947 44704 44748 45144 45232 46101 47234 48816 49248 50292 50886 51528 52272 53086 53713 54692 54864 55176 55512 57404 57912 57969 58082 58596 59664 60192 61468 62073 62194 65151 65278 67056 67122 67716 67848 68704 70851 73224 73568 74016 75438 76329 77216 77292 78128 78408 79629 82038 82296 82764 83268 86106 86868 87123 87894 89496 90288 90464 92202 93291 94468 97632 97917 100584 100683 101772 103056 104544 106172 107426 109384 109728 110352 111024 113157 114808 115824 115938 116164 117192 119328 122936 123057 124146 124388 129159 130302 130556 131841 134112 134244 135432 135696 138303 141702 146448 150876 152658 154584 156256 156816 157861 159258 161139 164076 164592 165528 166536 172212 173736 173907 174246 175788 178992 180576 184404 186219 186582 188936 195453 195834 201168 201366 203544 206112 212344 212553 214852 218768 220704 222048 226314 228987 229616 231648 231876 232328 234384 238887 245872 246114 248292 248776 258318 259787 260604 261112 261369 263682 268488 270864 271392 272669 276606 279873 283404 291973 292896 293751 301752 305316 309168 313632 315722 318516 319451 322278 328152 329184 331056 333072 344424 347472 347814 348492 351576 357984 359029 368808 369171 372438 373164 377872 387477 390906 391668 395523 402336 402732 407088 414909 424688 425106 429704 437536 452628 457974 459232 463752 464656 468768 473583 477774 483417 491744 492228 496584 497552 516636 519574 521208 522224 522738 527364 536976 541728 545338 551779 553212 559746 566808 583946 587502 590843 603504 610632 618336 620141 631444 637032 637659 638902 644556 656304 662112 666144 688848 694944 695628 696984 703152 716661 718058 737616 738342 744876 746328 755744 774954 779361 781812 783336 784107 791046 805464 814176 818007 829818 839619 849376 850212 859408 875919 881253 905256 915948 927504 929312 947166 955548 958353 966834 984456 993168 995104 1033272 1039148 1042416 1044448 1045476 1054728 1073952 1077087 1090676 1103558 1106424 1107513 1119492 1133616 1162431 1167892 1175004 1181686 1207008 1221264 1240282 1244727 1262888 1274064 1275318 1277804 1289112 1312608 1377696 1391256 1393968 1406304 1420749 1433322 1436116 1450251 1475232 1476684 1489752 1492656 1549908 1558722 1563624 1566672 1568214 1582092 1610928 1636014 1655337 1659636 1679238 1700424 1718816 1736471 1751838 1762506 1772529 1810512 1831896 1855008 1860423 1894332 1911096 1912977 1916706 1933668 1968912 1986336 2066544 2078296 2084832 2090952 2109456 2149983 2154174 2181352 2207116 2212848 2215026 2238984 2267232 2324862 2335784 2338083 2350008 2352321 2363372 2442528 2454021 2480564 2489454 2518857 2525776 2548128 2550636 2555608 2578224 2627757 2643759 2782512 2787936 2841498 2866644 2872232 2875059 2900502 2953368 2979504 2985312 2999359 3099816 3117444 3127248 3133344 3136428 3164184 3221856 3231261 3272028 3310674 3319272 3358476 3400848 3472942 3503676 3513961 3525012 3545058 3621024 3663792 3688207 3720846 3788664 3822192 3825954 3833412 3867336 3937824 3949319 4133088 4156592 4181904 4218912 4262247 4299966 4308348 4350753 4362704 4414232 4425696 4430052 4477968 4649724 4671568 4676166 4700016 4704642 4726744 4908042 4961128 4966011 4978908 5037714 5051552 5101272 5111216 5156448 5209413 5255514 5287518 5317587 5565024 5581269 5682996 5733288 5744464 5750118 5801004 5906736 5959008 5998718 6069569 6199632 6234888 6254496 6272856 6328368 6462522 6544056 6621348 6638544 6716952 6801696 6821551 6945884 7007352 7014249 7027922 7050024 7090116 7327584 7362063 7376414 7441692 7577328 7644384 7651908 7666824 7734672 7883271 7898638 8313184 8363808 8524494 8599932 8616696 8625177 8701506 8725408 8828464 8860104 8955936 8998077 9299448 9343136 9352332 9400032 9409284 9453488 9693783 9816084 9922256 9932022 9957816 10075428 10202544 10222432 10418826 10511028 10541883 10575036 10635174 11064621 11162538 11365992 11466576 11488928 11500236 11602008 11813472 11847957 11997436 12139138 12399264 12469776 12545712 12656736 12786741 12925044 13088112 13242696 13277088 13433904 13643102 13891768 14014704 14028498 14055844 14100048 14180232 14724126 14752828 14883384 14898033 15154656 15303816 15333648 15469344 15628239 15766542 15797276 15952761 16743807 17048988 17199864 17233392 17250354 17403012 17656928 17720208 17996154 18208707 18598896 18704664 18818568 18906976 19387566 19632168 19844512 19864044 19915632 20150856 20405088 20464653 20837652 21022056 21042747 21083766 21150072 21270348 22086189 22129242 22325076 22731984 22933152 23000472 23204016 23649813 23695914 23994872 24278276 24939552 25091424 25573482 25850088 25875531 26176224 26485392 26867808 26994231 27286204 27783536 28029408 28056996 28111688 28200096 28360464 29081349 29448252 29505656 29766768 29796066 30607632 30667296 31256478 31533084 31594552 31625649 31905522 32992949 33193863 33487614 34097976 34399728 34466784 34500708 34806024 35440416 35543871 35992308 36417414 37197792 37409328 37637136 38775132 39264336 39728088 39831264 40301712 40570277 40929306 41675304 42044112 42085494 42167532 42300144 42540696 44172378 44258484 44650152 44694099 45463968 46000944 46408032 46884717 47299626 47391828 47858283 47989744 48556552 50231421 51146964 51700176 51751062 52970784 53988462 54572408 54626121 55567072 56113992 56223376 56720928 58162698 58896504 59011312 59533536 59592132 61215264 61393959 62512956 63066168 63189104 63251298 63811044 65985898 66387726 66765259 66975228 68195952 68799456 69001416 69612048 70075933 71087742 71984616 72834828 74818656 75037061 75274272 77550264 78528672 79456176 80603424 80982693 81140554 81858612 83350608 84088224 84170988 84335064 84600288 85081392 88344756 88516968 89300304 89388198 92001888 93769434 94599252 94783656 94876947 95716566 95979488 97113104 98978847 99581589 100462842 102293928 103400352 103502124 106631613 107976924 109144816 109252242 112227984 112446752 116325396 117793008 118022624 119184264 121710831 122787918 125025912 126132336 126378208 126502596 127622088 131971796 132775452 133530518 133950456 136391904 138002832 139224096 140151866 140654151 142175484 143969232 145669656 150074122 155100528 158912352 161965386 162281108 163717224 163878363 166701216 168341976 168670128 170162784 176689512 177033936 178600608 178776396 184181877 187538868 189198504 189567312 189753894 191433132 194226208 197957694 199163178 200295777 200925684 204587856 207004248 210227799 213263226 215953848 218289632 218504484 224455968 225111183 232650792 235586016 238368528 242948079 243421662 245575836 250051824 252264672 253005192 255244176 263943592 265550904 267061036 267900912 276005664 280303732 281308302 284350968 284630841 287938464 291339312 296936541 298744767 300148244 310201056 319894839 323930772 324562216 327434448 327756726 336683952 337340256 353379024 354067872 357552792 365132493 368363754 375077736 378397008 379134624 379507788 382866264 395915388 398326356 400591554 401851368 409175712 414008496 420455598 426526452 431907696 437008968 446273047 450222366 465301584 476737056 485896158 486843324 491151672 491635089 500103648 506010384 510488352 527887184 531101808 534122072 535801824 552545631 560607464 562616604 568701936 569261682 582678624 593873082 597489534 600296488 600887331 630683397 639789678 647861544 649124432 654868896 655513452 673367904 675333549 706758048 715105584 730264986 736727508 750155472 756794016 759015576 765732528 770835263 791830776 796652712 801183108 803702736 828016992 840911196 853052904 863815392 874017936 890809623 892546094 900444732 930603168 971792316 973686648 982303344 983270178 1012020768 1055774368 1062203616 1068244144 1095397479 1105091262 1121214928 1125233208 1137403872 1138523364 1187746164 1194979068 1200592976 1201774662 1261366794 1279579356 1295723088 1298248864 1311026904 1338819141 1350667098 1430211168 1460529972 1473455016 1500310944 1518031152 1531465056 1541670526 1583661552 1593305424 1602366216 1607405472 1681822392 1706105808 1748035872 1781619246 1785092188 1800889464 1802661993 1892050191 1943584632 1947373296 1964606688 1966540356 2026000647 2136488288 2190794958 2210182524 2242429856 2250466416 2277046728 2312505789 2375492328 2389958136 2401185952 2403549324 2522733588 2559158712 2591446176 2622053808 2672428869 2677638282 2701334196 2921059944 2946910032 3036062304 3083341052 3167323104 3186610848 3204732432 3286192437 3363644784 3412211616 3563238492 3570184376 3601778928 3605323986 3784100382 3887169264 3894746592 3933080712 4016457423 4052001294 4381589916 4420365048 4500932832 4554093456 4625011578 4750984656 4779916272 4807098648 5045467176 5118317424 5244107616 5344857738 5355276564 5402668392 5407985979 5676150573 5842119888 5893820064 6078001941 6166682104 6409464864 6572384874 6727289568 6937517367 7126476984 7140368752 7203557856 7210647972 7568200764 7774338528 7866161424 8032914846 8104002588 8479187893 8763179832 8840730096 9108186912 9250023156 9501969312 9559832544 9614197296 10090934352 10236634848 10689715476 10710553128 10805336784 10815971958 11352301146 11684239776 12049372269 12156003882 12333364208 13144769748 13875034734 14252953968 14280737504 14421295944 15136401528 15732322848 16065829692 16208005176 16958375786 17526359664 17681460192 18500046312 19228394592 20181868704 20812552101 21379430952 21421106256 21610673568 21631943916 22704602292 24098744538 24312007764 24666728416 25437563679 26289539496 27750069468 28505907936 28842591888 30272803056 32131659384 32416010352 33916751572 35052719328 36148116807 37000092624 41625104202 42758861904 42842212512 43263887832 45409204584 48197489076 48624015528 50875127358 52579078992 55500138936 57685183776 60545606112 62437656303 64263318768 64832020704 67833503144 72296233614 74000185248 76312691037 83250208404 85517723808 86527775664 90818409168 96394978152 97248031056 101750254716 105158157984 111000277872 124875312606 128526637536 135667006288 144592467228 152625382074 166500416808 173055551328 181636818336 192789956304 194496062112 203500509432 222000555744 228938073111 249750625212 271334012576 289184934456 305250764148 333000833616 385579912608 407001018864 457876146222 499501250424 578369868912 610501528296 666001667232 686814219333 814002037728 915752292444 999002500848 1156739737824 1221003056592 1373628438666 1831504584888 1998005001696 2442006113184 2747256877332 3663009169776 5494513754664 7326018339552 10989027509328 21978055018656
• Sum of all divisors σ(n): 76338229524480
• Sum of proper divisors (its aliquot sum) s(n): 54360174505824
• 21978055018656 is an abundant number, because the sum of its proper divisors (54360174505824) is greater than itself. Its abundance is 32382119487168

Bases of 21978055018656

• Binary: 100111111110100101010001010011000100010100000₂
• Hexadecimal: 0x13FD2A2988A0
• Base-36: 7SGKUI200

Squares and roots of 21978055018656

• 21978055018656 squared (21978055018656²) is 483034902403070188508046336
• 21978055018656 cubed (21978055018656³) is 10616167660945807911121887751962592444416
• The square root of 21978055018656 is 4688075.8332876827
• The cube root of 21978055018656 is 28011.0734341577

Scales and comparisons

• 21,978,055,018,656 seconds is equal to 698,834 years, 8 weeks, 4 days, 18 hours, 57 minutes, 36 seconds.
• To count from 1 to 21,978,055,018,656 would take you about one million, seven hundred forty-seven thousand and 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 21978055018656 cubic inches would be around 2334.3 feet tall.

Recreational maths with 21978055018656

• 21978055018656 backwards is 65681055087912
• The number of decimal digits it has is: 14
• The sum of 21978055018656's digits is 63
• More coming soon!