18764659728817821

Names of 18764659728817821

• Cardinal: 18764659728817821 can be written as Eighteen quadrillion, seven hundred sixty-four trillion, six hundred fifty-nine billion, seven hundred twenty-eight million, eight hundred seventeen thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 1.8764659728817821 × 10¹⁶

Factors of 18764659728817821

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 572

Divisors of 18764659728817821

• Number of divisors d(n): 480
• Complete list of divisors:
  1 3 7 9 13 21 27 39 49 63 73 91 103 117 147 189 219 273 309 351 373 441 511 637 657 721 819 927 949 1119 1323 1339 1533 1911 1971 2163 2457 2611 2781 2847 3357 3577 4017 4599 4849 5047 5329 5733 6489 6643 7519 7833 8541 9373 10071 10731 12051 13797 14547 15141 15987 17199 18277 19467 19929 22557 23499 25623 27229 28119 32193 33943 36153 37303 38419 43641 45423 46501 47961 52633 54831 59787 65611 67671 69277 70497 81687 84357 96579 97747 101829 111909 115257 130923 136269 139503 143883 157899 164493 179361 190603 196833 203013 207831 237601 245061 253071 261121 268933 293241 305487 335727 345771 353977 368431 389017 418509 473697 484939 493479 499447 548887 571809 590499 623493 684229 712803 735183 783363 806799 879723 916461 1007181 1037313 1061931 1105293 1167051 1255527 1334221 1421091 1454817 1498341 1646661 1715427 1771497 1870479 1882531 1987717 2052687 2138409 2350089 2420397 2477839 2639169 2723119 2804587 3185793 3315879 3394573 3496129 3501153 3842209 4002663 4364451 4495023 4789603 4939983 5057221 5146281 5647593 5963151 6158061 6415227 7050267 7135531 7261191 7433517 8169357 8413761 9557379 9947637 10183719 10488387 10503459 11526627 12007989 13093353 13485069 13914019 14368809 14819949 15171663 16942779 17344873 17889453 18474183 19061833 19632109 21406593 22300551 24472903 24508071 25241283 25840321 26895463 28398241 30551157 31465161 34579881 35400547 36023967 36459631 40068751 41742057 43106427 45514989 49948717 50828337 52034619 53668359 57185499 58896327 64219779 66901653 73418709 73524213 75723849 77520963 80686389 85194723 91653471 94395483 97398133 103739643 106201641 109378893 120206253 125226171 129319281 136544967 137424763 145103341 149846151 156103857 171556497 176688981 180882247 192659337 198787687 204734851 220256127 232562889 242059167 247803829 255217417 255584169 280481257 292194399 318604923 328136679 349641019 360618759 369177133 375678513 412274289 435310023 449538453 468311571 514669491 520893763 530066943 542646741 596363061 614204553 660768381 697688667 726177501 743411487 765652251 766752507 841443771 876583197 955814769 984410037 1015723387 1048923057 1081856277 1107531399 1236822867 1266175729 1305930069 1348615359 1391513809 1433143957 1562681289 1627940223 1786521919 1789089183 1842613659 1886343433 1963368799 2230234461 2296956753 2524331313 2584239931 2629749591 2661553063 2925018823 3047170161 3146769171 3322594197 3646256341 3710468601 3798527187 3917790207 4174541427 4299431871 4688043867 4883820669 5359565757 5367267549 5527840977 5659030299 5890106397 6690703383 6890870259 7110063709 7572993939 7752719793 7984659189 8775056469 9141510483 9440307513 9967782591 10032007699 10592543893 10938769023 11395581561 12523624281 12898295613 13204404031 14064131601 14945644123 16078697271 16977090897 17670319191 18089679517 18630871441 20475131761 21330191127 23258159379 23953977567 25523794387 26325169407 27424531449 30096023097 31777631679 32816307069 34186744683 37570872843 38025244699 38694886839 39613212093 44836932369 48236091813 50931272691 53010957573 54269038551 55892614323 61425395283 63990573381 69774478137 71861932701 74147807251 76571383161 78975508221 90288069291 92430828217 95332895037 98448921207 104619508861 114075734097 118839636279 130416100087 134510797107 137703070609 143325922327 162807115653 167677842969 184276185849 191971720143 194293373599 222443421753 229714149483 266176712893 270864207873 277292484651 285998685111 313858526583 342227202291 356518908837 391248300261 403532391321 413109211827 429977766981 488421346959 503033528907 519034650757 552828557547 582880120797 667330265259 689142448449 732336562027 798530138679 831877453953 941575579749 963921494263 1026681606873 1091032020979 1173744900783 1239327635481 1289933300943 1360053615193 1557103952271 1748640362391 1863236990251 2001990795777 2197009686081 2395590416037 2495632361859 2824726739247 2891764482789 3273096062937 3521234702349 3717982906443 3869799902829 4080160845579 4671311856813 5245921087173 5589710970753 6591029058243 6747450459841 7186771248111 7637224146853 8675293448367 9520375306351 9819288188811 12240482536737 14013935570439 14183416272727 16769132912259 19773087174729 20242351379523 22911672440559 26025880345101 28561125919053 29457864566433 36721447610211 42550248818181 50307398736777 53460569027971 60727054138569 68735017321677 85683377757159 99283913909089 127650746454543 160381707083913 182181162415707 206205051965031 257050133271477 297851741727267 382952239363629 481145121251739 694987397363623 893555225181801 1443435363755217 2084962192090869 2680665675545403 6254886576272607 18764659728817821
• Sum of all divisors σ(n): 35747825404811520
• Sum of proper divisors (its aliquot sum) s(n): 16983165675993699
• 18764659728817821 is a deficient number, because the sum of its proper divisors (16983165675993699) is less than itself. Its deficiency is 1781494052824122

Bases of 18764659728817821

• Binary: 1000010101010100101101111001101011101111001111010011101₂
• Hexadecimal: 0x42AA5BCD779E9D
• Base-36: 54RILO9DQ59

Squares and roots of 18764659728817821

• 18764659728817821 squared (18764659728817821²) is 352112454738317299551494207188041
• 18764659728817821 cubed (18764659728817821³) is 6607270399443290369226181204083223619929578878661
• The square root of 18764659728817821 is 136984158.6783589405
• The cube root of 18764659728817821 is 265733.8610878315

Scales and comparisons

• 18,764,659,728,817,821 seconds is equal to 596,658,136 years, 24 weeks, 4 days, 3 hours, 10 minutes, 21 seconds.
• To count from 1 to 18,764,659,728,817,821 would take you about one billion, seven hundred eighty-nine million, nine hundred seventy-four thousand, four hundred nine 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 18764659728817821 cubic inches would be around 22144.5 feet tall.

Recreational maths with 18764659728817821

• 18764659728817821 backwards is 12871882795646781
• The number of decimal digits it has is: 17
• The sum of 18764659728817821's digits is 90
• More coming soon!