21493414551840

Names of 21493414551840

• Cardinal: 21493414551840 can be written as Twenty-one trillion, four hundred ninety-three billion, four hundred fourteen million, five hundred fifty-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.149341455184 × 10¹³

Factors of 21493414551840

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 7449

Divisors of 21493414551840

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 11 12 14 15 16 20 21 22 24 28 30 32 33 35 40 42 44 48 55 56 60 66 70 77 80 84 88 96 105 110 112 120 132 140 154 160 165 168 176 191 210 220 224 231 240 264 280 308 330 336 352 382 385 420 440 449 462 480 528 560 573 616 660 672 764 770 840 880 898 924 955 1056 1120 1146 1155 1232 1320 1337 1347 1528 1540 1680 1760 1796 1848 1910 2101 2245 2292 2310 2464 2640 2674 2694 2865 3056 3080 3143 3360 3592 3696 3820 4011 4202 4490 4584 4620 4939 5280 5348 5388 5730 6112 6160 6286 6303 6685 6735 6781 7184 7392 7640 8022 8404 8980 9168 9240 9429 9878 10505 10696 10776 11460 12320 12572 12606 13370 13470 13562 14368 14707 14817 15280 15715 16044 16808 17960 18336 18480 18858 19756 20055 20343 21010 21392 21552 22920 24695 25144 25212 26740 26940 27124 29414 29634 30560 31430 31515 32088 33616 33905 34573 35920 36960 37716 39512 40110 40686 42020 42784 43104 44121 45840 47145 47467 49390 50288 50424 53480 53880 54248 58828 59268 62860 63030 64176 67232 67810 69146 71840 73535 74085 74591 75432 79024 80220 81372 84040 85759 88242 91680 94290 94934 98780 100576 100848 101715 103719 106960 107760 108496 117656 118536 125720 126060 128352 135620 138292 142401 147070 148170 149182 150864 158048 160440 162744 168080 171518 172865 176484 188580 189868 197560 201696 203430 207438 213920 215520 216992 220605 223773 235312 237072 237335 251440 252120 257277 271240 276584 284802 294140 296340 298364 301728 320880 325488 336160 343036 345730 352968 372955 377160 379736 395120 406860 414876 428795 441210 447546 470624 474144 474670 502880 504240 514554 518595 522137 542480 553168 569604 588280 592680 596728 600313 641760 650976 686072 691460 705936 712005 745910 754320 759472 790240 813720 829752 857590 882420 895092 943349 949340 1008480 1029108 1037190 1044274 1084960 1106336 1118865 1139208 1176560 1185360 1193456 1200626 1286385 1295171 1372144 1382920 1411872 1424010 1491820 1508640 1518944 1566411 1627440 1659504 1715180 1764840 1790184 1800939 1886698 1898680 2058216 2074380 2088548 2237730 2278416 2353120 2370720 2386912 2401252 2572770 2590342 2610685 2744288 2765840 2830047 2848020 2983640 3001565 3044669 3132822 3254880 3319008 3430360 3529680 3580368 3601878 3773396 3797360 3885513 4116432 4148760 4177096 4475460 4556832 4716745 4802504 5145540 5180684 5221370 5531680 5660094 5696040 5967280 6003130 6089338 6265644 6475855 6603443 6860720 7059360 7160736 7203756 7546792 7594720 7771026 7832055 8232864 8297520 8354192 8950920 9004695 9066197 9134007 9433490 9605008 10291080 10361368 10442740 11320188 11392080 11934560 12006260 12178676 12531288 12951710 13206886 13721440 14150235 14246881 14407512 15093584 15223345 15542052 15664110 16595040 16708384 17901840 18009390 18132394 18268014 18866980 19210016 19427565 19810329 20582160 20722736 20885480 21312683 22640376 22784160 24012520 24357352 25062576 25903420 26413772 27198591 28300470 28493762 28815024 30187168 30446690 31084104 31328220 33017215 33491359 35803680 36018780 36264788 36536028 37733960 38855130 39620658 41164320 41445472 41770960 42625366 42740643 45280752 45330985 45670035 48025040 48714704 50125152 51806840 52827544 54397182 56600940 56987524 57630048 60893380 62168208 62656440 63938049 66034430 66982718 71234405 72037560 72529576 73072056 75467920 77710260 79241316 83541920 85250732 85481286 90561504 90661970 91340070 96050080 97429408 99051645 99728167 100474077 103613680 105655088 106563415 108794364 113201880 113975048 121786760 124336416 125312880 127876098 132068860 133965436 135992955 142468810 144075120 145059152 146144112 150935840 155420520 158482632 167456795 170501464 170962572 181323940 182680140 198103290 199456334 200948154 207227360 211310176 213126830 213703215 217588728 226403760 227950096 234439513 243573520 250625760 255752196 264137720 267930872 271985910 284937620 288150240 290118304 292288224 299184501 310841040 316965264 319690245 334913590 341002928 341925144 362647880 365360280 396206580 398912668 401896308 426253660 427406430 435177456 452807520 455900192 468879026 487147040 498640835 502370385 511504392 528275440 535861744 543971820 569875240 581531779 598369002 621682080 633930528 639380490 669827180 682005856 683850288 703318539 725295760 730720560 792413160 797825336 803792616 852507320 854812860 870354912 937758052 997281670 1004740770 1023008784 1056550880 1071723488 1087943640 1139750480 1163063558 1172197565 1196738004 1278760980 1339654360 1367700576 1406637078 1450591520 1461441120 1495922505 1584826320 1595650672 1607585232 1705014640 1709625720 1744595337 1875516104 1994563340 2009481540 2046017568 2175887280 2279500960 2326127116 2344395130 2393476008 2557521960 2679308720 2813274156 2907658895 2991845010 3169652640 3191301344 3215170464 3410029280 3419251440 3489190674 3516592695 3751032208 3989126680 4018963080 4070722453 4351774560 4652254232 4688790260 4786952016 5115043920 5358617440 5626548312 5815317790 5983690020 6396849569 6838502880 6978381348 7033185390 7502064416 7978253360 8037926160 8141444906 8722976685 9304508464 9377580520 9573904032 10230087840 11253096624 11630635580 11967380040 12212167359 12793699138 13956762696 14066370780 15956506720 16075852320 16282889812 17445953370 18609016928 18755161040 19190548707 20353612265 22506193248 23261271160 23934760080 24424334718 25587398276 27913525392 28132741560 31984247845 32565779624 34891906740 37510322080 38381097414 40707224530 44777946983 46522542320 47869520160 48848669436 51174796552 55827050784 56265483120 61060836795 63968495690 65131559248 69783813480 76762194828 81414449060 89555893966 93045084640 95952743535 97697338872 102349593104 112530966240 122121673590 127936991380 130263118496 134333840949 139567626960 153524389656 162828898120 179111787932 191905487070 195394677744 204699186208 223889734915 244243347180 255873982760 268667681898 279135253920 307048779312 325657796240 358223575864 383810974140 390789355488 447779469830 488486694360 511747965520 537335363796 614097558624 651315592480 671669204745 716447151728 767621948280 895558939660 976973388720 1023495931040 1074670727592 1343338409490 1432894303456 1535243896560 1791117879320 1953946777440 2149341455184 2686676818980 3070487793120 3582235758640 4298682910368 5373353637960 7164471517280 10746707275920 21493414551840
• Sum of all divisors σ(n): 85053962649600
• Sum of proper divisors (its aliquot sum) s(n): 63560548097760
• 21493414551840 is an abundant number, because the sum of its proper divisors (63560548097760) is greater than itself. Its abundance is 42067133545920

Bases of 21493414551840

• Binary: 100111000110001010011010101101110000100100000₂
• Hexadecimal: 0x138C5356E120
• Base-36: 7M9XS2WIO

Squares and roots of 21493414551840

• 21493414551840 squared (21493414551840²) is 461966869097247468047385600
• 21493414551840 cubed (21493414551840³) is 9929245426722743133819273085707669504000
• The square root of 21493414551840 is 4636099.0662236717
• The cube root of 21493414551840 is 27803.6495009741

Scales and comparisons

• 21,493,414,551,840 seconds is equal to 683,424 years, 5 weeks, 1 day, 3 hours, 4 minutes.
• To count from 1 to 21,493,414,551,840 would take you about one million, seven hundred eight thousand, five hundred sixty 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 21493414551840 cubic inches would be around 2317 feet tall.

Recreational maths with 21493414551840

• 21493414551840 backwards is 04815541439412
• The number of decimal digits it has is: 14
• The sum of 21493414551840's digits is 51
• More coming soon!