21015102078432

Names of 21015102078432

• Cardinal: 21015102078432 can be written as Twenty-one trillion, fifteen billion, one hundred two million, seventy-eight thousand, four hundred thirty-two.

Scientific notation

• Scientific notation: 2.1015102078432 × 10¹³

Factors of 21015102078432

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 118000

Divisors of 21015102078432

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 19 21 22 24 27 28 32 33 36 38 42 44 47 48 54 56 57 63 66 72 76 77 81 84 88 94 96 99 108 112 114 126 132 133 141 144 152 154 162 168 171 176 188 189 198 209 216 224 228 231 252 264 266 282 288 297 304 308 324 329 336 342 352 376 378 396 399 418 423 432 456 462 504 513 517 528 532 564 567 594 608 616 627 648 658 672 684 693 752 756 792 798 836 846 864 891 893 912 924 987 1008 1026 1034 1056 1064 1128 1134 1188 1197 1232 1254 1269 1296 1316 1368 1386 1463 1504 1512 1539 1551 1584 1596 1672 1692 1782 1786 1824 1848 1881 1974 2016 2052 2068 2079 2128 2256 2268 2376 2394 2464 2508 2538 2592 2632 2679 2736 2772 2926 2961 3024 3078 3102 3168 3192 3344 3384 3564 3572 3591 3619 3696 3762 3807 3948 4104 4136 4158 4256 4389 4512 4536 4653 4752 4788 5016 5076 5264 5358 5472 5544 5643 5852 5922 6048 6156 6204 6237 6251 6384 6688 6768 7128 7144 7182 7238 7392 7524 7614 7896 8037 8208 8272 8316 8778 8883 9072 9306 9504 9576 9823 10032 10152 10528 10716 10773 10857 11088 11286 11704 11844 12312 12408 12474 12502 12768 13167 13536 13959 14256 14288 14364 14476 15048 15228 15792 16074 16416 16544 16632 16929 17556 17766 18144 18612 18753 19152 19646 20064 20304 21432 21546 21714 22176 22572 23408 23688 24111 24624 24816 24948 25004 26334 26649 27918 28512 28576 28728 28952 29469 30096 30456 31584 32148 32571 33264 33858 35112 35532 37224 37506 38304 39292 39501 40608 41877 42864 43092 43428 45144 46816 47376 48222 49248 49632 49896 50008 52668 53298 55836 56259 57456 57904 58938 60192 60912 64296 65142 66528 67716 68761 70224 71064 72333 74448 75012 78584 79002 83754 85728 86184 86856 88407 90288 94752 96444 97713 99792 100016 105336 106596 111672 112518 114912 115808 117876 117911 118503 121824 128592 130284 135432 137522 140448 142128 144666 148896 150024 157168 158004 167508 168777 172368 173712 176814 180576 192888 195426 199584 200032 206283 210672 213192 223344 225036 235752 235822 237006 257184 260568 265221 270864 275044 284256 289332 293139 300048 314336 316008 335016 337554 344736 347424 353628 353733 385776 390852 412566 421344 426384 446688 450072 471504 471644 474012 506331 521136 530442 541728 550088 578664 586278 600096 618849 632016 670032 675108 707256 707466 771552 781704 795663 825132 825377 852768 900144 943008 943288 948024 1012662 1042272 1060884 1061199 1100176 1157328 1172556 1237698 1264032 1297021 1340064 1350216 1414512 1414932 1563408 1591326 1650264 1650754 1800288 1856547 1886576 1896048 2025324 2121768 2122398 2200352 2240309 2314656 2345112 2475396 2476131 2594042 2700432 2829024 2829864 3126816 3182652 3183597 3300528 3301508 3713094 3773152 3792096 3891063 4050648 4243536 4244796 4480618 4690224 4950792 4952262 5188084 5400864 5541817 5569641 5659728 6365304 6367194 6601056 6603016 6720927 7426188 7428393 7782126 8101296 8487072 8489592 8961236 9079147 9380448 9550791 9901584 9904524 10376168 11083634 11139282 11319456 11673189 12730608 12734388 13206032 13441854 14852376 14856786 15564252 15682163 16202592 16625451 16979184 17922472 18158294 19101582 19803168 19809048 20162781 20752336 22167268 22278564 22285179 23346378 24643399 25461216 25468776 26412064 26883708 27237441 29704752 29713572 31128504 31364326 33250902 33958368 35019567 35844944 36316588 38203164 38792719 39618096 40325562 41504672 44334536 44557128 44570358 46692756 47046489 49286798 49876353 50937552 53767416 54474882 59409504 59427144 60488343 60959987 62257008 62728652 66501804 66855537 70039134 71689888 72633176 73930197 76406328 77585438 79236192 80651124 81712323 88669072 89114256 89140716 93385512 94092978 98573596 99752706 101875104 105058701 105294523 107534832 108949764 116378157 118854288 120976686 121919974 124514016 125457304 133003608 133711074 140078268 141139467 145266352 147860394 149629059 152812656 155170876 161302248 163424646 172503793 177338144 178228512 178281432 181465029 182879961 186771024 188185956 197147192 199505412 210117402 210589046 215069664 217899528 221790591 232756314 237708576 241953372 243839948 245136969 250914608 266007216 267422148 280156536 282278934 290532704 295720788 299258118 305625312 310341752 315883569 322604496 326849292 345007586 349134471 356562864 362930058 365759922 373542048 376371912 394294384 399010824 420234804 421178092 423418401 426719909 435799056 443581182 448887177 465512628 483906744 487679896 490273938 501829216 517511379 532014432 534844296 548639883 560313072 564557868 591441576 598516236 620683504 631767138 645208992 653698584 665371773 690015172 698268942 713125728 725860116 731519844 735410907 737061661 752743824 788588768 798021648 840469608 842356184 846836802 853439818 871598112 887162364 897774354 931025256 947650707 967813488 975359792 980547876 1035022758 1047403413 1069688592 1097279766 1120626144 1129115736 1158239753 1182883152 1197032472 1241367008 1263534276 1270255203 1280159727 1307397168 1330743546 1380030344 1396537884 1451720232 1463039688 1470821814 1474123322 1505487648 1552534137 1596043296 1645919649 1680939216 1684712368 1693673604 1706879636 1774324728 1795548708 1862050512 1895301414 1935626976 1950719584 1961095752 1996115319 2070045516 2094806826 2139377184 2194559532 2211184983 2258231472 2316479506 2365766304 2394064944 2527068552 2540510406 2560319454 2614794336 2661487092 2760060688 2793075768 2842952121 2903440464 2926079376 2941643628 2948246644 3105068274 3142210239 3291839298 3361878432 3369424736 3387347208 3413759272 3474719259 3548649456 3591097416 3724101024 3790602828 3840479181 3922191504 3992230638 4140091032 4189613652 4389119064 4422369966 4516462944 4632959012 4657602411 4788129888 4937758947 5054137104 5081020812 5120638908 5322974184 5520121376 5586151536 5685904242 5806880928 5852158752 5883287256 5896493288 6210136548 6284420478 6583678596 6633554949 6774694416 6827518544 6949438518 7097298912 7182194832 7581205656 7680958362 7844383008 7984461276 8107678271 8280182064 8379227304 8528856363 8778238128 8844739932 9265918024 9315204822 9875517894 10108274208 10162041624 10241277816 10424157777 10645948368 11172303072 11371808484 11521437543 11766574512 11792986576 12420273096 12568840956 13167357192 13267109898 13549388832 13655037088 13898877036 13972807233 14364389664 15162411312 15361916724 15968922552 16215356542 16560364128 16758454608 17057712726 17556476256 17689479864 18531836048 18630409644 19751035788 19900664847 20324083248 20482555632 20848315554 21291896736 22743616968 23042875086 23533149024 23585973152 24323034813 24840546192 25137681912 26334714384 26534219796 27797754072 27945614466 30324822624 30723833448 31272473331 31937845104 32430713084 33516909216 34115425452 34564312629 35378959728 37063672096 37260819288 39502071576 39801329694 40648166496 40965111264 41696631108 45487233936 46085750172 48646069626 49681092384 50275363824 52669428768 53068439592 55595508144 55891228932 59701994541 61447666896 62544946662 63875690208 64861426168 68230850904 69128625258 70757919456 72969104439 74521638576 79004143152 79602659388 83393262216 90974467872 92171500344 93817419993 97292139252 100550727648 106136879184 111191016288 111782457864 119403989082 122895333792 125089893324 129722852336 136461701808 138257250516 145938208878 149043277152 158008286304 159205318776 166786524432 184343000688 187634839986 194584278504 212273758368 218907313317 223564915728 238807978164 250179786648 259445704672 272923403616 276514501032 291876417756 318410637552 333573048864 368686001376 375269679972 389168557008 437814626634 447129831456 477615956328 500359573296 553029002064 583752835512 636821275104 656721939951 750539359944 778337114016 875629253268 955231912656 1000719146592 1106058004128 1167505671024 1313443879902 1501078719888 1751258506536 1910463825312 2335011342048 2626887759804 3002157439776 3502517013072 5253775519608 7005034026144 10507551039216 21015102078432
• Sum of all divisors σ(n): 82837387100160
• Sum of proper divisors (its aliquot sum) s(n): 61822285021728
• 21015102078432 is an abundant number, because the sum of its proper divisors (61822285021728) is greater than itself. Its abundance is 40807182943296

Bases of 21015102078432

• Binary: 100110001110011110101101100011011110111100000₂
• Hexadecimal: 0x131CF5B1BDE0
• Base-36: 7G67D6M00

Squares and roots of 21015102078432

• 21015102078432 squared (21015102078432²) is 441634515366916966279578624
• 21015102078432 cubed (21015102078432³) is 9280994421794605781153936799619558637568
• The square root of 21015102078432 is 4584223.1706617425
• The cube root of 21015102078432 is 27595.8537487991

Scales and comparisons

• 21,015,102,078,432 seconds is equal to 668,215 years, 12 weeks, 4 days, 3 hours, 7 minutes, 12 seconds.
• To count from 1 to 21,015,102,078,432 would take you about one million, six hundred seventy thousand, five hundred thirty-eight 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 21015102078432 cubic inches would be around 2299.7 feet tall.

Recreational maths with 21015102078432

• 21015102078432 backwards is 23487020151012
• 21015102078432 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21015102078432's digits is 36
• More coming soon!