21128651185824

Names of 21128651185824

• Cardinal: 21128651185824 can be written as Twenty-one trillion, one hundred twenty-eight billion, six hundred fifty-one million, one hundred eighty-five thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 2.1128651185824 × 10¹³

Factors of 21128651185824

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 976

Divisors of 21128651185824

• Number of divisors d(n): 1440
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 27 28 32 36 39 42 48 49 52 54 56 63 72 73 78 81 84 91 96 98 104 108 112 117 126 144 146 147 156 162 168 182 189 196 208 216 219 224 234 252 273 288 292 294 307 312 324 336 351 364 378 392 416 432 438 441 468 504 511 546 567 571 584 588 614 624 637 648 657 672 702 728 756 784 819 864 876 882 921 936 949 1008 1022 1053 1092 1134 1142 1168 1176 1228 1248 1274 1296 1314 1323 1404 1456 1512 1533 1568 1638 1713 1752 1764 1842 1872 1898 1911 1971 2016 2044 2106 2149 2184 2268 2284 2336 2352 2456 2457 2548 2592 2628 2646 2763 2808 2847 2912 3024 3066 3276 3426 3504 3528 3577 3684 3744 3796 3822 3942 3969 3991 3997 4088 4212 4298 4368 4536 4568 4599 4704 4912 4914 5096 5139 5256 5292 5526 5616 5694 5733 5913 6048 6132 6447 6552 6643 6852 7008 7056 7154 7368 7371 7423 7592 7644 7884 7938 7982 7994 8176 8289 8424 8541 8596 8736 9072 9136 9198 9824 9828 10192 10278 10512 10584 10731 11052 11232 11388 11466 11826 11973 11991 12264 12894 13104 13286 13704 13797 14112 14308 14736 14742 14846 15043 15184 15288 15417 15768 15876 15964 15988 16352 16578 16848 17082 17192 17199 18144 18272 18396 19341 19656 19929 20384 20556 21024 21168 21462 22104 22269 22411 22776 22932 23652 23946 23982 24528 24867 25623 25788 26208 26572 27408 27594 27937 27979 28616 29472 29484 29692 30086 30368 30576 30834 31536 31752 31928 31976 32193 33156 33696 34164 34384 34398 35919 35973 36792 38682 39312 39858 41112 41391 41683 42336 42924 44208 44538 44822 45129 45552 45864 46251 46501 47304 47892 47964 49056 49734 51246 51576 51597 51961 53144 54816 55188 55874 55958 57232 58023 58968 59384 59787 60172 61152 61668 63072 63504 63856 63952 64386 66312 66807 67233 68328 68768 68796 71838 71946 73584 76869 77364 78624 79716 82224 82782 83366 83811 83937 85848 88416 89076 89644 90258 91104 91728 92502 93002 94608 95784 95928 96579 99468 102492 103152 103194 103922 106288 107757 107919 110376 111748 111916 114464 116046 117936 118768 119574 120344 123336 125049 127008 127712 127904 128772 132624 133614 134466 135387 136656 137592 139503 143676 143892 147168 153738 154728 155883 156877 159432 164448 165564 166732 167622 167874 171696 174069 175297 178152 179288 179361 180516 183456 185004 186004 189216 191568 191856 193158 195559 198936 200421 201699 204984 206304 206388 207844 212576 215514 215838 220752 223496 223832 232092 235872 237536 239148 240688 246672 250098 251433 251811 257544 265248 267228 268932 270774 273312 275184 279006 287352 287784 289737 291343 291781 307476 309456 311766 313754 318864 323271 323757 331128 333464 335244 335748 343392 348138 350594 356304 358576 358722 361032 363727 370008 372008 375147 383136 383712 386316 391118 397872 400842 403398 406161 409968 412776 415688 418509 431028 431676 441504 446992 447664 464184 467649 470631 478296 481376 493344 500196 502866 503622 515088 525891 534456 537864 538083 541548 541879 550368 558012 574704 575568 579474 582686 583562 586677 601263 605097 614952 618912 623532 627508 637728 646542 647514 662256 666928 670488 671496 696276 701188 712608 717152 717444 722064 727454 740016 744016 750294 754299 755433 772632 782236 795744 801684 806796 812322 819936 825552 831376 837018 862056 863352 874029 875343 893984 895328 928368 935298 941262 956592 1000392 1005732 1007244 1030176 1051782 1068912 1075728 1076166 1083096 1083758 1091181 1098139 1116024 1125441 1149408 1151136 1158948 1165372 1167124 1173354 1202526 1210194 1218483 1227079 1229904 1247064 1255016 1255527 1293084 1295028 1324512 1333856 1340976 1342992 1392552 1402376 1402947 1411893 1434888 1444128 1454908 1480032 1488032 1500588 1508598 1510866 1545264 1564472 1577673 1603368 1613592 1624644 1625637 1651104 1662752 1674036 1724112 1726704 1748058 1750686 1760031 1815291 1856736 1870596 1882524 1913184 2000784 2011464 2014488 2039401 2042467 2103564 2137824 2151456 2152332 2166192 2167516 2182362 2196278 2232048 2250882 2262897 2266299 2278861 2317896 2330744 2334248 2346708 2405052 2420388 2436966 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102373448 102415131 103074636 104753376 105421344 106208284 108042336 109385328 110127654 110293218 111664189 113592456 114206456 115170129 117045864 117799584 117847548 118599012 120530592 121380896 123058494 125860176 126049392 126722232 127616216 128482263 132524532 134682912 135541728 136553508 137432848 143568243 146836872 147057624 151456608 153560172 154611954 156061152 157130064 158132016 159312426 164077992 165191481 165439827 166356853 168962976 171309684 175568796 176699376 177898518 179153534 182071344 184587741 188790264 189074088 191424324 195782496 196076832 198786798 203312592 204746896 204830262 206149272 212416568 218770656 220255308 220586436 223328378 227184912 228412912 230340258 231917931 234091728 235695096 237198024 238968639 246116988 251720352 252098784 253444464 255232432 256964526 265049064 268730301 273107016 274865696 287136486 293673744 294115248 307120344 307245393 309223908 314260128 316264032 318624852 328155984 330382962 330879654 332713706 334992567 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1370477472 1382041548 1391507586 1404550368 1423188144 1433228272 1433811834 1476701928 1497211677 1531394592 1541787156 1590294384 1612381806 1638642096 1722818916 1762042464 1764691488 1786627024 1842722064 1855343448 1881112107 1911749112 1968935904 1996282236 2009955402 2055716208 2073062322 2149842408 2150717751 2297091888 2312680734 2328995942 2418572709 2457963144 2473791264 2508149476 2548998816 2584228374 2643063696 2647037232 2661709648 2679940536 2764083096 2783015172 2846376288 2866456544 2867623668 2953403856 2994423354 3014933103 3083574312 3180588768 3224763612 3277284192 3445637832 3493493913 3573254048 3685444128 3710686896 3762224214 3823498224 3992564472 4019910804 4111432416 4146124644 4299684816 4301435502 4491635031 4594183776 4625361468 4657991884 4837145418 4915926288 5016298952 5168456748 5286127392 5294074464 5323419296 5359881072 5528166192 5566030344 5643336321 5735247336 5906807712 5988846708 6029866206 6167148624 6449527224 6891275664 6986987826 7255718127 7421373792 7524448428 7646996448 7985128944 8039821608 8151485797 8292249288 8599369632 8602871004 8983270062 9044799309 9250722936 9315983768 9674290836 9831852576 10032597904 10336913496 10480481739 10719762144 11056332384 11132060688 11286672642 11470494672 11977693416 12059732412 12334297248 12899054448 13474905093 13782551328 13973975652 14511436254 15048896856 15970257888 16079643216 16302971594 16584498576 16930008963 17205742008 17966540124 18089598618 18501445872 18631967536 19348581672 20065195808 20673826992 20960963478 22264121376 22573345284 22940989344 23955386832 24119464824 24454457391 25798108896 26949810186 27947951304 29022872508 30097793712 31441445217 32159286432 32605943188 33168997152 33860017926 34411484016 35933080248 36179197236 37002891744 37263935072 38697163344 41347653984 41921926956 45146690568 47910773664 48238929648 48908914782 50790026889 53899620372 55895902608 58045745016 60195587424 62882890434 65211886376 67720035852 68822968032 71866160496 72358394472 73363372173 77394326688 83843853912 90293381136 94324335651 96477859296 97817829564 101580053778 107799240744 111791805216 116091490032 125765780868 130423772752 135440071704 143732320992 144716788944 146726744346 167687707824 180586762272 188648671302 195635659128 203160107556 215598481488 220090116519 232182980064 251531561736 260847545504 270880143408 289433577888 293453488692 335375415648 377297342604 391271318256 406320215112 431196962976 440180233038 503063123472 541760286816 586906977384 660270349557 754594685208 782542636512 812640430224 880360466076 1006126246944 1173813954768 1320540699114 1509189370416 1625280860448 1760720932152 2347627909536 2641081398228 3018378740832 3521441864304 5282162796456 7042883728608 10564325592912 21128651185824
• Sum of all divisors σ(n): 79306224693696
• Sum of proper divisors (its aliquot sum) s(n): 58177573507872
• 21128651185824 is an abundant number, because the sum of its proper divisors (58177573507872) is greater than itself. Its abundance is 37048922322048

Bases of 21128651185824

• Binary: 100110011011101100101101111111001111010100000₂
• Hexadecimal: 0x133765BF9EA0
• Base-36: 7HMD9E200

Squares and roots of 21128651185824

• 21128651185824 squared (21128651185824²) is 446419900932221921378558976
• 21128651185824 cubed (21128651185824³) is 9432250369207023302186217805070719156224
• The square root of 21128651185824 is 4596591.2572061485
• The cube root of 21128651185824 is 27645.4666065669

Scales and comparisons

• 21,128,651,185,824 seconds is equal to 671,825 years, 39 weeks, 21 hours, 50 minutes, 24 seconds.
• To count from 1 to 21,128,651,185,824 would take you about one million, six hundred seventy-nine thousand, five hundred sixty-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 21128651185824 cubic inches would be around 2303.8 feet tall.

Recreational maths with 21128651185824

• 21128651185824 backwards is 42858115682112
• 21128651185824 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21128651185824's digits is 54
• More coming soon!