21230920957428

Names of 21230920957428

• Cardinal: 21230920957428 can be written as Twenty-one trillion, two hundred thirty billion, nine hundred twenty million, nine hundred fifty-seven thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1230920957428 × 10¹³

Factors of 21230920957428

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1154

Divisors of 21230920957428

• Number of divisors d(n): 648
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 49 52 61 63 78 84 91 98 117 122 126 127 147 156 182 183 196 234 244 252 254 273 294 364 366 381 427 441 468 508 546 549 588 637 732 762 793 819 854 882 889 941 1092 1098 1143 1274 1281 1524 1586 1638 1651 1708 1764 1778 1882 1911 2196 2286 2379 2548 2562 2667 2823 2989 3172 3276 3302 3556 3764 3822 3843 4572 4758 4953 5124 5334 5551 5646 5733 5978 6223 6587 6604 7137 7644 7686 7747 8001 8469 8967 9516 9906 10668 11102 11292 11466 11557 11956 12233 12446 13174 14274 14859 15372 15494 16002 16129 16653 16938 17934 18669 19761 19812 22204 22932 23114 23241 24466 24892 26348 26901 28548 29718 30988 32004 32258 33306 33876 34671 35868 36699 37338 38857 39522 46109 46228 46482 48387 48932 49959 53802 54229 56007 57401 59283 59436 64516 66612 69342 69723 73398 74676 77714 79044 80899 85631 92218 92964 96774 99918 100711 104013 107604 108458 110097 112014 112903 114802 116571 118566 119507 138327 138684 139446 145161 146796 155428 161798 162687 171262 172203 184436 193548 199836 201422 208026 209677 216916 220194 224028 225806 229604 233142 237132 239014 242697 256893 276654 278892 290322 302133 323596 325374 338709 342524 344406 349713 358521 379603 401807 402844 414981 416052 419354 440388 451612 466284 478028 485394 488061 513786 516609 553308 580644 599417 604266 629031 650748 677418 688812 699426 704977 717042 728091 746213 759206 770679 790321 803614 829962 836549 838708 906399 970788 976122 983869 1016127 1027572 1033218 1075563 1138809 1198834 1205421 1208532 1258062 1354836 1398852 1409954 1434084 1456182 1467739 1492426 1518412 1541358 1553591 1580642 1607228 1659924 1673098 1798251 1812798 1887093 1952244 1967738 2032254 2066436 2114931 2151126 2238639 2277618 2370963 2397668 2410842 2509647 2516124 2812649 2819908 2912364 2935478 2951607 2984852 3082716 3107182 3161284 3346196 3416427 3596502 3616263 3625596 3774186 3935476 4064508 4229862 4302252 4403217 4477278 4555236 4660773 4741926 4821684 4934839 5019294 5223491 5394753 5625298 5855843 5870956 5903214 6214364 6344793 6715917 6832854 6887083 7112889 7193004 7232526 7289927 7528941 7548372 8437947 8459724 8806434 8854821 8954556 9321546 9483852 9869678 10038588 10274173 10446982 10789506 10875137 11250596 11711686 11806428 12689586 12790297 13209651 13431834 13665708 13774166 13982319 14225778 14465052 14579854 14804517 15057882 15177389 15670473 16875894 17567529 17612868 17709642 18643092 19739356 20548346 20661249 20893964 21579012 21750274 21869781 23423372 25313841 25379172 25580594 26419302 26863668 27548332 27964638 28451556 29159708 29609034 30115764 30354778 30822519 31340946 32625411 33751788 35135058 35419284 36564437 38370891 41096692 41322498 43500548 43739562 44413551 45532167 47011419 48209581 50627682 51029489 51161188 52702587 52838604 55929276 59218068 60709556 61645038 61983747 62681892 65250822 65609343 70270116 73128874 76125959 76741782 82644996 87479124 88827102 89532079 91064334 92467557 94022838 94769051 96419162 97876233 101255364 102058978 105405174 106241723 109693311 115112673 123290076 123967494 130501644 131218686 136596501 144628743 146257748 152251918 153088467 153483564 177654204 179064158 182128668 184935114 188045676 189538102 192838324 195752466 197306057 204117956 210810348 212483446 219386622 228377877 230225346 247934988 262437372 268596237 273193002 284307153 289257486 304503836 306176934 318725169 329079933 357206423 358128316 369870228 379076204 391504932 394612114 424966892 433886229 438773244 456755754 459265401 460450692 537192474 546386004 568614306 578514972 591918171 612353868 626724553 637450338 658159866 663383357 685133631 714412846 743692061 789224228 805788711 852921459 867772458 913511508 918530802 925820729 956175507 1071619269 1074384948 1137228612 1183836342 1253449106 1274900676 1316319732 1326766714 1370267262 1381142399 1428825692 1487384122 1611577422 1705842918 1735544916 1775754513 1837061604 1851641458 1880173659 1912351014 1990150071 2143238538 2231076183 2367672684 2506898212 2653533428 2740534524 2762284798 2777462187 2974768244 3214857807 3223154844 3411685836 3551509026 3703282916 3760347318 3824702028 3980300142 4143427197 4286477076 4462152366 4643683499 5524569596 5554924374 5640520977 5970450213 6429715614 6480745103 6693228549 7103018052 7520694636 7960600284 8286854394 8332386561 8924304732 9287366998 9667996793 11109848748 11281041954 11940900426 12035669477 12430281591 12859431228 12961490206 13386457098 13931050497 16573708788 16664773122 18574733996 19335993586 19442235309 22562083908 23881800852 24071338954 24860563182 25922980412 26772914196 27862100994 29003990379 33329546244 36107008431 38671987172 38884470618 41793151491 45365215721 48142677908 49721126364 55724201988 58007980758 58326705927 72214016862 77768941236 83586302982 84249686339 87011971137 90730431442 108321025293 116015961516 116653411854 136095647163 144428033724 167172605964 168499372678 174023942274 181460862884 216642050586 233306823708 252749059017 272191294326 336998745356 348047884548 408286941489 433284101172 505498118034 544382588652 589747804373 758247177051 816573882978 1010996236068 1179495608746 1516494354102 1633147765956 1769243413119 2358991217492 3032988708204 3538486826238 5307730239357 7076973652476 10615460478714 21230920957428
• Sum of all divisors σ(n): 68948890441704
• Sum of proper divisors (its aliquot sum) s(n): 47717969484276
• 21230920957428 is an abundant number, because the sum of its proper divisors (47717969484276) is greater than itself. Its abundance is 26487048526848

Bases of 21230920957428

• Binary: 100110100111100110101100000000111110111110100₂
• Hexadecimal: 0x134F35807DF4
• Base-36: 7IXCM66T0

Squares and roots of 21230920957428

• 21230920957428 squared (21230920957428²) is 450752004700555464188375184
• 21230920957428 cubed (21230920957428³) is 9569880183199707372189675428436955666752
• The square root of 21230920957428 is 4607702.3512188805
• The cube root of 21230920957428 is 27689.9992819903

Scales and comparisons

• 21,230,920,957,428 seconds is equal to 675,077 years, 31 weeks, 6 days, 19 hours, 43 minutes, 48 seconds.
• To count from 1 to 21,230,920,957,428 would take you about one million, six hundred eighty-seven thousand, six hundred ninety-four 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 21230920957428 cubic inches would be around 2307.5 feet tall.

Recreational maths with 21230920957428

• 21230920957428 backwards is 82475902903212
• The number of decimal digits it has is: 14
• The sum of 21230920957428's digits is 54
• More coming soon!