21978991164312

Names of 21978991164312

• Cardinal: 21978991164312 can be written as Twenty-one trillion, nine hundred seventy-eight billion, nine hundred ninety-one million, one hundred sixty-four thousand, three hundred twelve.

Scientific notation

• Scientific notation: 2.1978991164312 × 10¹³

Factors of 21978991164312

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 4850

Divisors of 21978991164312

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 18 19 21 24 26 28 36 38 39 42 49 52 56 57 63 72 73 76 78 84 91 98 104 114 117 126 133 146 147 152 156 168 171 182 196 219 228 234 247 252 266 273 292 294 312 342 364 392 399 438 441 456 468 494 504 511 532 546 584 588 637 657 684 728 741 798 819 876 882 931 936 949 988 1022 1064 1092 1176 1197 1274 1314 1368 1387 1482 1533 1596 1638 1729 1752 1764 1862 1898 1911 1976 2044 2184 2223 2394 2548 2628 2774 2793 2847 2964 3066 3192 3276 3458 3528 3577 3724 3796 3822 4088 4161 4446 4599 4733 4788 5096 5187 5256 5329 5548 5586 5694 5733 5928 6132 6552 6643 6916 7154 7448 7592 7644 8322 8379 8541 8892 9198 9466 9576 9709 10374 10658 10731 11096 11172 11388 11466 12103 12264 12483 13286 13832 14199 14308 15288 15561 15987 16644 16758 17082 17784 18031 18396 18932 19418 19929 20748 21316 21462 22344 22776 22932 24206 24966 26572 28398 28616 29127 31122 31974 32193 33131 33288 33516 34164 36062 36309 36792 37303 37864 38836 39858 41496 42597 42632 42924 45864 46501 47961 48412 49932 53144 54093 56796 58254 59787 61529 62244 63948 64386 66262 67032 67963 68328 69277 72124 72618 74606 77672 79716 85194 85848 87381 89927 93002 95922 96824 99393 99864 101251 108186 108927 111909 113592 116508 119574 123058 124488 126217 127896 128772 132524 135926 138554 139503 144248 145236 149212 159432 162279 170388 174762 179854 184587 186004 191844 198786 202502 203889 207831 216372 217854 223818 231917 233016 239148 246116 252434 257544 261121 265048 269781 271852 277108 279006 290472 298179 298424 303753 324558 335727 340776 345509 349524 359708 369174 372008 378651 383688 397572 405004 407778 415662 418509 430703 432744 435708 447636 463834 478296 484939 492232 504868 522242 539562 543704 553761 554216 558012 596358 607506 611667 623493 629489 649116 671454 691018 695751 699048 708757 719416 738348 757302 783363 795144 809343 810008 815556 831324 837018 861406 871416 883519 895272 911259 927668 969878 1009736 1036527 1044484 1079124 1107522 1116024 1135953 1169051 1192716 1215012 1223334 1246986 1258978 1292109 1298232 1316263 1342908 1382036 1391502 1417514 1454817 1476696 1514604 1566726 1618686 1631112 1662648 1674036 1722812 1767038 1822518 1855336 1888467 1939756 2073054 2087253 2088968 2126271 2158248 2215044 2271906 2338102 2350089 2385432 2418563 2430024 2446668 2493972 2517956 2584218 2632526 2650557 2685816 2764072 2783004 2835028 2909634 3014921 3029208 3109581 3133452 3237372 3348072 3394573 3445624 3507153 3534076 3645036 3776934 3876327 3879512 3948789 4146108 4174506 4252542 4364451 4406423 4430088 4491617 4543812 4676204 4700178 4837126 4893336 4961299 4987944 5035912 5168436 5265052 5301114 5566008 5665401 5670056 5819268 6029842 6219162 6266904 6378813 6474744 6564671 6789146 7014306 7068152 7255689 7290072 7553868 7752654 7897578 7951671 8183357 8292216 8349012 8505084 8728902 8812846 8983234 9044763 9087624 9213841 9352408 9400356 9674252 9922598 10183719 10336872 10521459 10530104 10602228 11330802 11638536 11846367 12059684 12438324 12757626 13129342 13219269 13474851 13578292 14028612 14511378 14883897 15107736 15505308 15795156 15903342 16366714 16698024 16929941 17010168 17457804 17625692 17966468 18089526 18427682 18800712 19348504 19694013 19845196 20367438 21042918 21204456 21767067 22661604 23692734 24119368 24550071 24876648 25222157 25515252 26258684 26438538 26949702 27134289 27156584 27641523 28057224 29022756 29767794 30551157 31010616 31441319 31590312 31806684 32733428 33859882 34915608 35251384 35932936 36179052 36855364 39388026 39657807 39690392 40424553 40734876 42085836 43534134 44651691 45323208 45952697 47385468 49100142 50444314 50789823 51030504 52517368 52877076 53899404 54268578 55283046 57283499 58045512 59082039 59535588 61102314 62882638 63613368 64496887 65466856 67719764 72358104 73650213 73710728 75666471 78776052 79315614 80849106 81469752 82924569 84171672 85340723 87068268 89303382 91905394 94323957 94770936 98200284 100888628 101579646 105754152 107798808 108537156 110566092 114566998 118164078 119071176 122204628 125765276 128993774 135439528 137858091 147300426 151332942 152369469 157552104 158631228 161698212 165849138 170681446 171850497 174136536 176555099 178606764 183810788 188647914 193490661 196400568 201777256 203159292 217074312 220089233 221132184 226999413 229133996 236328156 244409256 251530552 256022169 257987548 275716182 282971871 294600852 302665884 304738938 317262456 321668879 323396424 327888041 331698276 341362892 343700994 353110198 357213528 367621576 377295828 386981322 406318584 413574273 440178466 453998826 458267992 472656312 479220983 512044338 515551491 515975096 529665297 551432364 565943742 580471983 589201704 597385061 605331768 609477876 643337758 655776082 660267699 663396552 682725784 687401988 706220396 754591656 768066507 773962644 827148546 880356932 907997652 958441966 965006637 983664123 1024088676 1031102982 1059330594 1102864728 1131887484 1160943966 1194770122 1218955752 1235885693 1286675516 1311552164 1320535398 1374803976 1412440792 1437662949 1536133014 1547925288 1588995891 1654297092 1760713864 1792155183 1815995304 1916883932 1930013274 1967328246 1980803097 2048177352 2062205964 2118661188 2263774968 2295216287 2321887932 2389540244 2471771386 2573351032 2623104328 2641070796 2875325898 2895019911 2950992369 3072266028 3177991782 3308594184 3354546881 3584310366 3707657079 3833767864 3860026548 3934656492 3961606194 4124411928 4181695427 4237322376 4312988847 4590432574 4643775864 4779080488 4943542772 5282141592 5376465549 5750651796 5790039822 5901984738 6144532056 6229872779 6355983564 6709093762 6885648861 7168620732 7415314158 7720053096 7869312984 7923212388 8363390854 8625977694 9180865148 9887085544 10063640643 10752931098 11122971237 11501303592 11580079644 11803969476 12459745558 12545086281 12711967128 13418187524 13771297722 14337241464 14830628316 15846424776 16066514009 16726781708 17251955388 18361730296 18689618337 20127281286 20656946583 21505862196 22245942474 23160159288 23481828167 23607938952 24919491116 25090172562 26836375048 27542595444 29661256632 30190921929 32133028018 33453563416 34503910776 37379236674 37635258843 40254562572 41313893166 43011724392 43609109453 44491884948 46963656334 48199542027 49838982232 50180345124 55085190888 56068855011 60381843858 64266056036 70445484501 74758473348 75270517686 80509125144 82627786332 87218218906 88983769896 93927312668 96399084054 100360690248 112137710022 120763687716 128532112072 130827328359 140890969002 144598626081 149516946696 150541035372 165255572664 174436437812 187854625336 192798168108 211336453503 224275420044 241527375432 261654656718 281781938004 289197252162 301082070744 305263766171 348872875624 385596336216 392481985077 422672907006 448550840088 523309313436 563563876008 578394504324 610527532342 784963970154 845345814012 915791298513 1046618626872 1156789008648 1221055064684 1569927940308 1690691628024 1831582597026 2442110129368 2747373895539 3139855880616 3663165194052 5494747791078 7326330388104 10989495582156 21978991164312
• Sum of all divisors σ(n): 79603235384400
• Sum of proper divisors (its aliquot sum) s(n): 57624244220088
• 21978991164312 is an abundant number, because the sum of its proper divisors (57624244220088) is greater than itself. Its abundance is 35645253055776

Bases of 21978991164312

• Binary: 100111111110101100001111101011111101110011000₂
• Hexadecimal: 0x13FD61F5FB98
• Base-36: 7SH0BUWM0

Squares and roots of 21978991164312

• 21978991164312 squared (21978991164312²) is 483076052600904965382433344
• 21978991164312 cubed (21978991164312³) is 10617524291806009180955710697794291619328
• The square root of 21978991164312 is 4688175.6754959601
• The cube root of 21978991164312 is 28011.4711349913

Scales and comparisons

• 21,978,991,164,312 seconds is equal to 698,863 years, 48 weeks, 3 days, 19 hours, 25 minutes, 12 seconds.
• To count from 1 to 21,978,991,164,312 would take you about one million, seven hundred forty-seven thousand, one hundred fifty-nine 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 21978991164312 cubic inches would be around 2334.3 feet tall.

Recreational maths with 21978991164312

• 21978991164312 backwards is 21346119987912
• 21978991164312 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21978991164312's digits is 63
• More coming soon!