21209121183280401

Names of 21209121183280401

• Cardinal: 21209121183280401 can be written as Twenty-one quadrillion, two hundred nine trillion, one hundred twenty-one billion, one hundred eighty-three million, two hundred eighty thousand, four hundred one.

Scientific notation

• Scientific notation: 2.1209121183280401 × 10¹⁶

Factors of 21209121183280401

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 122

Divisors of 21209121183280401

• Number of divisors d(n): 400
• Complete list of divisors:
  1 3 7 9 21 23 27 49 63 69 81 89 147 161 189 207 267 343 441 483 529 567 621 623 801 1029 1127 1323 1449 1587 1863 1869 2047 2403 3087 3381 3703 3969 4347 4361 4761 5607 6141 7209 7889 7921 9261 10143 11109 12167 13041 13083 14283 14329 16821 18423 23667 23763 25921 27783 30429 30527 33327 36501 39249 42849 42987 47081 50463 55269 55447 71001 71289 77763 85169 91287 91581 99981 100303 109503 117747 128961 141243 165807 166341 181447 182183 213003 213867 233289 255507 274743 299943 300909 328509 329567 353241 386883 388129 423729 499023 544341 546549 596183 639009 641601 699867 702121 704969 766521 824229 902727 985527 988701 1082863 1160649 1164387 1271187 1275281 1497069 1633023 1639647 1788549 2099601 2106363 2114907 2299563 2306969 2472687 2708181 2716903 2966103 3248589 3493161 3813561 3825843 4173281 4190209 4491207 4899069 4918941 4934783 5365647 6319089 6344721 6898689 6920907 7580041 8124543 8150709 8898309 8926967 9745767 10479483 11477529 12519843 12570627 14697207 14756823 14804349 16096941 16148783 16214287 18957267 19034163 20762721 22740123 24452127 26694927 26780901 29237301 29331463 31438449 34432587 34543481 37559529 37711881 44413047 48290823 48446349 48642861 53060287 56871801 57102489 62288163 62488769 62742241 68220369 73356381 80342703 87711903 87994389 96374807 103297761 103630443 112678587 113135643 113500009 133239141 145339047 145928583 159180861 186864489 187466307 188226723 204661107 205320241 220069143 241028109 241804367 263983167 289124421 310891329 338035761 339406929 340500027 371422009 372928601 399717423 436017141 437785749 439195687 477542583 562398921 564680169 613983321 615960723 674623649 723084327 725413101 791949501 794500063 867373263 932673987 1021500081 1114266027 1118785803 1308051423 1313357247 1317587061 1432627749 1437241687 1443071543 1687196763 1694040507 1847882169 2023870947 2176239303 2375848503 2383500189 2602119789 2610500207 2798021961 3064500243 3074369809 3342798081 3356357409 3952761183 4297883247 4311725061 4329214629 4722365543 5061590289 5082121521 5543646507 5561500441 6071612841 6528717909 7150500567 7806359367 7831500621 8577357823 9193500729 9223109427 10028394243 10069072227 10101500801 11858283549 12935175183 12987643887 14167096629 16630939521 16684501323 18214838523 18273501449 19586153727 21451501701 21520588663 23494501863 25732073469 27669328281 30085182729 30207216681 30304502403 33056558801 33190645489 35574850647 38805525549 38962931661 42501289887 50053503969 54644515569 54820504347 60041504761 64354505103 64561765989 70483505589 70710505607 77196220407 83007984843 90913507209 99169676403 99571936467 116416576647 116888794983 127503869661 127914510143 150160511907 164461513041 180124514283 193685297967 211450516767 212131516821 231588661221 232334518423 249023954529 272740521627 297509029209 298715809401 382511608983 383743530429 420290533327 450481535721 493384539123 494973539249 540373542849 581055893901 636394550463 694765983663 697003555269 763384846247 818221564881 892527087627 896147428203 1151230591287 1260871599981 1480153617369 1484920617747 1621120628547 1626341628961 1743167681703 1909183651389 2091010665807 2290154538741 2677581262881 2688442284609 2942033733289 3453691773861 3782614799943 4454761853241 4863361885641 4879024886883 5343693923729 5727550954167 6273031997421 6870463616223 8826101199867 10361075321583 11347844399829 11384391402727 13364285559723 14637074660649 16031081771187 18819095992263 20611390848669 26478303599601 34043533199487 34153174208181 37405857466103 40092856679169 43911223981947 48093245313561 61834172546007 79434910798803 102459522624543 112217572398309 131733671945841 144279735940683 238304732396409 261841002262721 307378567873629 336652717194927 432839207822049 785523006788163 922135703620887 1009958151584781 2356569020364489 3029874454754343 7069707061093467 21209121183280401
• Sum of all divisors σ(n): 39066079898208000
• Sum of proper divisors (its aliquot sum) s(n): 17856958714927599
• 21209121183280401 is a deficient number, because the sum of its proper divisors (17856958714927599) is less than itself. Its deficiency is 3352162468352802

Bases of 21209121183280401

• Binary: 1001011010110011001010101010110001000001010110100010001₂
• Hexadecimal: 0x4B59955620AD11
• Base-36: 5SU07RH8S29

Squares and roots of 21209121183280401

• 21209121183280401 squared (21209121183280401²) is 449826821367073437066747390720801
• 21209121183280401 cubed (21209121183280401³) is 9540431565864086143347118228273471162933086321201
• The square root of 21209121183280401 is 145633516.6892580431
• The cube root of 21209121183280401 is 276805.1873154297

Scales and comparisons

• 21,209,121,183,280,401 seconds is equal to 674,384,449 years, 26 weeks, 3 days, 7 hours, 13 minutes, 21 seconds.
• To count from 1 to 21,209,121,183,280,401 would take you about two billion, twenty-three million, one hundred fifty-three thousand, three hundred forty-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 21209121183280401 cubic inches would be around 23067.1 feet tall.

Recreational maths with 21209121183280401

• 21209121183280401 backwards is 10408238112190212
• The number of decimal digits it has is: 17
• The sum of 21209121183280401's digits is 45
• More coming soon!