21240389451897

Names of 21240389451897

• Cardinal: 21240389451897 can be written as Twenty-one trillion, two hundred forty billion, three hundred eighty-nine million, four hundred fifty-one thousand, eight hundred ninety-seven.

Scientific notation

• Scientific notation: 2.1240389451897 × 10¹³

Factors of 21240389451897

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 106

Divisors of 21240389451897

• Number of divisors d(n): 768
• Complete list of divisors:
  1 3 7 9 11 17 21 27 31 33 37 49 51 63 77 93 99 111 119 147 153 187 189 217 231 259 279 289 297 333 341 343 357 407 441 459 527 539 561 629 651 693 777 833 837 867 999 1023 1029 1071 1147 1221 1309 1323 1369 1519 1581 1617 1683 1813 1887 1953 2023 2079 2331 2387 2499 2601 2849 3069 3087 3179 3213 3441 3663 3689 3773 3927 4107 4403 4557 4743 4851 4913 5049 5439 5661 5797 5831 5859 6069 6919 6993 7161 7497 7803 8029 8547 8959 9163 9207 9261 9537 9583 10323 10633 10693 10989 11067 11319 11781 12321 12617 12691 13209 13671 14161 14229 14553 14739 15059 16317 16709 16983 17391 17493 18207 19499 19943 20757 21483 22253 22491 23273 24087 25641 25823 26877 27489 28611 28749 30821 30969 31899 32079 33201 33957 34391 35343 36963 37851 38073 39627 40579 41013 42439 42483 44217 45177 48433 48951 50127 52173 52479 54043 54621 56203 58497 59829 62271 62713 64141 64449 66759 67081 69819 72261 74851 76923 77469 80631 82467 85833 86247 88319 92463 95697 96237 98549 99127 99603 101871 103173 105413 113553 114219 116963 117623 118881 121737 127317 127449 132651 135531 136493 139601 145299 150381 152303 155771 156519 157437 162129 162911 168609 175491 179487 180761 181781 186813 188139 192423 200277 201243 209457 214489 215747 216783 224553 232407 240737 241893 247401 256003 258741 264957 277389 284053 287091 288711 295647 297073 297381 309519 316239 331483 339031 340659 342657 350889 352869 365211 378301 381951 382347 393421 395641 406593 409479 418803 435897 438991 451143 456909 466829 467313 469567 486387 488733 505827 523957 526473 538461 542283 545343 564417 577269 600831 603729 618233 628371 643467 647241 673659 689843 697221 721463 722211 737891 768009 794871 823361 832167 852159 886941 891219 892143 928557 948717 955451 994449 1017093 1052667 1058607 1066121 1090397 1095633 1134903 1140377 1145853 1180263 1186923 1228437 1256409 1272467 1307691 1316973 1370727 1400487 1401939 1408701 1459161 1466199 1501423 1517481 1571871 1626849 1636029 1675333 1685159 1693251 1731807 1792021 1811187 1854699 1930401 1941723 1988371 1999591 2020977 2069529 2079511 2164389 2166633 2213673 2304027 2320381 2373217 2384613 2470083 2556477 2648107 2660823 2673657 2676429 2769487 2846151 2866353 2983347 3051279 3072937 3158001 3175821 3198363 3267803 3271191 3404709 3421131 3540789 3560769 3646313 3667699 3685311 3769227 3817401 3950919 4112181 4201461 4205817 4226103 4327631 4352051 4398597 4504269 4715613 4828901 4880547 4908087 5025999 5050241 5055477 5165237 5376063 5564097 5635211 5763527 5791203 5825169 5965113 5998773 6208587 6238533 6493167 6499899 6641019 6688157 6725897 6912081 6961143 7119651 7410249 7462847 7669431 7936093 7944321 7982639 8020971 8308461 8599059 8907269 8950041 9153837 9218811 9595089 9803409 9813573 10214127 10263393 10509961 10622367 10682307 10938939 11003097 11452203 11727331 11852757 12264871 12544147 12604383 12678309 12982893 13056153 13512807 13997137 14146839 14486703 14556577 15077997 15150723 15166431 15495711 16128189 16242667 16692291 16905633 17290581 17895339 17996319 18536749 18625761 18715599 19386409 19479501 19923057 20064471 20177691 20883429 21358953 22230747 22388541 22874621 23808279 23832963 23947917 24925383 25524191 25797177 26721807 27656433 28785267 29410227 29440719 30464357 30790179 31529883 32816817 33009291 33802307 34356609 35181993 35351687 36794613 37632441 38948679 39168459 39446477 40344689 40538421 41991411 43460109 43669731 45233991 45452169 45499293 46487133 47081279 48384567 48728001 50716899 51871743 52239929 53686017 53988957 55552651 55610247 56146797 58159227 60193413 60533073 61987321 62350883 62650287 64076859 67165623 68623863 71424837 71498889 71843751 73569727 73984867 74776149 76572573 80165421 82091317 82969299 85854097 87809029 88230681 91393071 94589649 97979959 98450451 99027873 101406921 105545979 106055061 110383839 112897323 113698669 116846037 117505377 118339431 121034067 125974233 130380327 131009193 134913581 135704863 136356507 139461399 141243837 146184003 152150697 155615229 156719787 160122347 166657953 166830741 174477681 178669337 180580239 181599219 185961963 187052649 201496869 205871589 208502807 213250499 214274511 215531253 220709181 221954601 229717719 240496263 246273951 247461809 257562291 263427087 274179213 276125339 283768947 293939877 304220763 316637937 318165183 329568953 331151517 338691969 341096007 355018293 363102201 377922699 388868557 393027579 404740743 407114589 423731511 433911247 438552009 470159361 480367041 499973859 500492223 517894069 523433043 536008011 557885889 561157947 574639219 600978679 617614767 625508421 639751497 662127543 665863803 685859713 689153157 738821853 742385427 772686873 790281261 822537639 828376017 881819631 912662289 944395067 954495549 988706859 1023288021 1065054879 1089306603 1166605671 1214222229 1221343767 1250685359 1271194533 1301733741 1410478083 1441101123 1459519649 1492753493 1499921577 1553682207 1608024033 1673657667 1683473841 1723917657 1802936037 1876525263 1919254491 1932877373 1986382629 1997591409 2057579139 2216465559 2227156281 2293530877 2306982671 2318060619 2370843783 2485128051 2645458893 2722079899 2833185201 2966120577 3037378729 3069864063 3499817013 3625258483 3642666687 3664031301 3752056077 3905201223 4206850753 4323303369 4378558947 4478260479 4661046621 4824072099 5171752971 5408808111 5629575789 5757763473 5798632119 6172737417 6610765469 6681468843 6880592631 6920948013 7455384153 8166239697 8499555603 8898361731 9112136187 10216637543 10499451039 10875775449 11256168231 11715603669 12620552259 13135676841 13434781437 13983139863 15515258913 16054716139 16226424333 17395896357 18518212251 19832296407 20641777893 20762844039 21261651103 24498719091 25376809381 25498666809 27336408561 30649912629 32627326347 33768504693 37861656777 39407030523 40304344311 46275358283 48164148417 52187689071 59496889221 61925333679 62288532117 63784953309 71516462801 73496157273 76130428143 82009225683 91949737887 97881979041 112383012973 113584970331 138826074849 144492445251 178490667663 191354859927 214549388403 228391284429 275849213661 337149038919 416478224547 433477335753 574064579781 643648165209 685173853287 786681090811 1011447116757 1249434673641 1930944495627 2360043272433 3034341350271 7080129817299 21240389451897
• Sum of all divisors σ(n): 45124853760000
• Sum of proper divisors (its aliquot sum) s(n): 23884464308103
• 21240389451897 is an abundant number, because the sum of its proper divisors (23884464308103) is greater than itself. Its abundance is 2644074856206

Bases of 21240389451897

• Binary: 100110101000101101001110111100100000001111001₂
• Hexadecimal: 0x135169DE4079
• Base-36: 7J1P7GVW9

Squares and roots of 21240389451897

• 21240389451897 squared (21240389451897²) is 451154144068257340076898609
• 21240389451897 cubed (21240389451897³) is 9582689722847032697351903577449151711273
• The square root of 21240389451897 is 4608729.7004594443
• The cube root of 21240389451897 is 27694.1150343475

Scales and comparisons

• 21,240,389,451,897 seconds is equal to 675,378 years, 35 weeks, 3 days, 21 hours, 4 minutes, 57 seconds.
• To count from 1 to 21,240,389,451,897 would take you about one million, six hundred eighty-eight thousand, four hundred forty-six 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 21240389451897 cubic inches would be around 2307.8 feet tall.

Recreational maths with 21240389451897

• 21240389451897 backwards is 79815498304212
• 21240389451897 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21240389451897's digits is 63
• More coming soon!