21018618801488

Names of 21018618801488

• Cardinal: 21018618801488 can be written as Twenty-one trillion, eighteen billion, six hundred eighteen million, eight hundred one thousand, four hundred eighty-eight.

Scientific notation

• Scientific notation: 2.1018618801488 × 10¹³

Factors of 21018618801488

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 137

Divisors of 21018618801488

• Number of divisors d(n): 840
• Complete list of divisors:
  1 2 4 7 8 11 14 16 17 22 28 29 34 44 49 56 58 68 71 77 88 98 112 116 119 136 142 154 176 187 196 203 232 238 272 284 308 319 343 374 392 406 464 476 493 497 539 568 616 638 686 748 781 784 812 833 841 952 986 994 1078 1136 1207 1232 1276 1309 1372 1421 1496 1562 1624 1666 1682 1904 1972 1988 2059 2156 2233 2401 2414 2552 2618 2744 2842 2992 3124 3248 3332 3364 3451 3479 3773 3944 3976 4118 4312 4466 4802 4828 5104 5236 5423 5467 5488 5684 5831 5887 6248 6664 6728 6902 6958 7546 7888 7952 8236 8449 8624 8932 9163 9251 9604 9656 9947 10472 10846 10934 11368 11662 11774 12496 13277 13328 13456 13804 13916 14297 14413 15092 15631 16472 16807 16898 17864 18326 18502 19208 19312 19894 20944 21692 21868 22649 22736 23324 23548 24157 24353 26411 26554 27608 27832 28594 28826 30184 31262 32944 33614 33796 35003 35728 36652 37004 37961 38269 38416 39788 40817 41209 43384 43736 45298 46648 47096 48314 48706 52822 53108 55216 55664 57188 57652 59143 59711 60368 62524 64141 64757 67228 67592 69629 70006 73304 74008 75922 76538 79576 81634 82418 86768 87472 90596 92939 93296 94192 96628 97412 100079 100891 105644 106216 109417 114376 115304 117649 118286 119422 125048 128282 129514 134456 135184 139258 140012 146608 148016 151844 153076 157267 158543 159152 163268 164836 169099 170471 181192 184877 185878 193256 194824 200158 201782 211288 212432 218834 228752 230608 235298 236572 238844 245021 250096 256564 259028 265727 267883 268912 278516 280024 285719 288463 303688 306152 314534 317086 326536 329672 338198 340942 362384 369754 371756 385033 386512 389648 400316 403564 414001 417977 422576 437668 448987 453299 470596 473144 477688 487403 490042 513128 518056 531454 535766 557032 560048 571438 576926 607376 612304 629068 634172 650573 653072 656821 659344 676396 681884 700553 706237 739508 743512 765919 770066 800632 807128 828002 835954 875336 897974 906598 941192 946288 955376 974806 980084 1015087 1026256 1036112 1062908 1071532 1100869 1109801 1114064 1142876 1153852 1183693 1193297 1258136 1268344 1294139 1301146 1313642 1352792 1363768 1401106 1412474 1479016 1487024 1531838 1540132 1601264 1614256 1656004 1671908 1715147 1750672 1795948 1813196 1860089 1875181 1882384 1949612 1960168 2000033 2019241 2030174 2125816 2143064 2201738 2219602 2285752 2307704 2367386 2386594 2516272 2536688 2588278 2602292 2627284 2695231 2705584 2727536 2802212 2824948 2898007 2925839 2958032 3063676 3080264 3142909 3173093 3312008 3343816 3411821 3430294 3591896 3626392 3720178 3750362 3899224 3920336 4000066 4038482 4060348 4251632 4286128 4403476 4439204 4554011 4571504 4597747 4615408 4734772 4773188 4903871 4943659 5176556 5204584 5254568 5361433 5390462 5604424 5649896 5796014 5851678 6127352 6160528 6285818 6346186 6624016 6687632 6823642 6860588 7105609 7183792 7252784 7440356 7500724 7706083 7768607 7798448 8000132 8076964 8120696 8285851 8353079 8806952 8878408 9108022 9195494 9469544 9546376 9807742 9887318 10353112 10409168 10509136 10722866 10780924 11165957 11208848 11299792 11592028 11703356 12006029 12254704 12571636 12692372 13020623 13126267 13647284 13721176 14134687 14211218 14880712 15001448 15412166 15537214 16000264 16153928 16241392 16571702 16706158 17613904 17756816 18216044 18390988 18866617 18939088 19092752 19615484 19774636 20286049 20480873 20706224 21445732 21561848 22000363 22211651 22331914 23184056 23406712 24012058 25143272 25384744 26041246 26252534 27294568 27442352 28269374 28422436 29761424 30002896 30824332 31074428 31878077 32000528 32184229 32307856 33143404 33412316 34327097 34605613 36432088 36781976 37530031 37733234 39230968 39549272 40572098 40961746 42891464 43123696 44000726 44423302 44663828 46368112 46813424 48024116 49739263 50286544 50769488 52082492 52505068 53942581 54380249 54589136 56538748 56844872 58000957 61648664 62148856 63756154 64368458 66286808 66824632 68654194 69211226 72864176 73563952 75060062 75466468 78161699 78461936 79098544 81144196 81923492 84042203 85782928 88001452 88846604 89327656 91144361 91883869 96048232 98942809 99478526 104164984 105010136 107885162 108760498 113077496 113689744 116001914 123297328 124297712 127512308 128736916 132066319 132573616 133649264 137308388 138422452 142002343 143366111 150120124 150932936 155481557 156323398 162288392 163846984 168084406 176002904 177693208 178655312 182288722 183767738 192096464 197885618 198957052 208329968 210020272 215770324 217520996 223146539 225289603 226154992 232003828 240289679 242239291 255024616 257473832 264132638 274616776 276844904 284004686 286732222 300240248 301865872 310963114 312646796 324576784 327693968 336168812 348174841 352005808 355386416 364577444 367535476 377598067 380661743 395771236 397914104 431540648 435041992 446293078 450579206 464007656 480579358 484478582 510049232 514947664 528265276 547131893 549233552 553689808 568009372 573464444 588295421 600480496 621926228 625293592 638010527 672337624 696349682 729154888 735070952 755196134 761323486 791542472 795828208 863081296 870083984 892586156 901158412 924464233 928015312 961158716 968957164 1003562777 1056530552 1088370899 1094263786 1136018744 1146928888 1176590842 1243852456 1250587184 1276021054 1344675248 1392699364 1458309776 1470141904 1510392268 1522646972 1562025773 1577027221 1583084944 1682027753 1785172312 1802316824 1848928466 1922317432 1937914328 2007125554 2113061104 2176741798 2188527572 2272037488 2293857776 2353181684 2437223887 2487704912 2552042108 2643186469 2664632201 2785398728 3020784536 3045293944 3124051546 3154054442 3364055506 3570344624 3604633648 3697856932 3829923251 3844634864 3875828656 4014251108 4118067947 4353483596 4377055144 4706363368 4874447774 5104084216 5286372938 5329264402 5570797456 6041569072 6090587888 6248103092 6308108884 6471249631 6728111012 7024939439 7395713864 7659846502 8028502216 8236135894 8706967192 8754110288 9412726736 9748895548 10208168432 10572745876 10658528804 11039190547 12496206184 12616217768 12942499262 13456222024 14049878878 14791427728 15319693004 16057004432 16472271788 17060567209 17413934384 18502305283 19497791096 21145491752 21317057608 22078381094 24992412368 25232435536 25884998524 26809462757 26912444048 28099757756 30639386008 32944543576 34121134418 37004610566 38995582192 42290983504 42634115216 44156762188 45298747417 51769997048 53618925514 56199515512 61278772016 65889087152 68242268836 74009221132 77274333829 88313524376 90597494834 103539994096 107237851028 112399031024 119423970463 136484537672 148018442264 154548667658 176627048752 181194989668 187666239299 214475702056 238847940926 272969075344 296036884528 309097335316 362389979336 375332478598 428951404112 477695881852 618194670632 724779958672 750664957196 955391763704 1236389341264 1313663675093 1501329914392 1910783527408 2627327350186 3002659828784 5254654700372 10509309400744 21018618801488
• Sum of all divisors σ(n): 57636897948864
• Sum of proper divisors (its aliquot sum) s(n): 36618279147376
• 21018618801488 is an abundant number, because the sum of its proper divisors (36618279147376) is greater than itself. Its abundance is 15599660345888

Bases of 21018618801488

• Binary: 100110001110111000111010011101010110101010000₂
• Hexadecimal: 0x131DC74EAD50
• Base-36: 7G7TIY6VK

Squares and roots of 21018618801488

• 21018618801488 squared (21018618801488²) is 441782336322264849551014144
• 21018618801488 cubed (21018618801488³) is 9285654520388450941799647542276216246272
• The square root of 21018618801488 is 4584606.7226631337
• The cube root of 21018618801488 is 27597.3929841213

Scales and comparisons

• 21,018,618,801,488 seconds is equal to 668,327 years, 3 weeks, 1 day, 22 hours, 38 minutes, 8 seconds.
• To count from 1 to 21,018,618,801,488 would take you about one million, six hundred seventy thousand, eight hundred seventeen 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 21018618801488 cubic inches would be around 2299.8 feet tall.

Recreational maths with 21018618801488

• 21018618801488 backwards is 88410881681012
• 21018618801488 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21018618801488's digits is 56
• More coming soon!