21389838691221
21,389,838,691,221 is an odd composite number composed of five prime numbers multiplied together.
21389838691221 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of four hundred thirty-two divisors.
Prime factorization of 21389838691221:
33 × 78 × 11 × 13 × 312
(3 × 3 × 3 × 7 × 7 × 7 × 7 × 7 × 7 × 7 × 7 × 11 × 13 × 31 × 31)See below for interesting mathematical facts about the number 21389838691221 from the Numbermatics database.
Names of 21389838691221
- Cardinal: 21389838691221 can be written as Twenty-one trillion, three hundred eighty-nine billion, eight hundred thirty-eight million, six hundred ninety-one thousand, two hundred twenty-one.
Scientific notation
- Scientific notation: 2.1389838691221 × 1013
Factors of 21389838691221
Divisors of 21389838691221
- Number of divisors d(n): 432
-
Complete list of divisors:
1 3 7 9 11 13 21 27 31 33 39 49 63 77 91 93 99 117 143 147 189 217 231 273 279 297 341 343 351 403 429 441 539 637 651 693 819 837 961 1001 1023 1029 1209 1287 1323 1519 1617 1911 1953 2079 2387 2401 2457 2821 2883 3003 3069 3087 3627 3773 3861 4433 4459 4557 4851 5733 5859 6727 7007 7161 7203 8463 8649 9009 9207 9261 10571 10633 10881 11319 12493 13299 13377 13671 14553 16709 16807 17199 19747 20181 21021 21483 21609 25389 25947 26411 27027 31031 31213 31713 31899 33957 37479 39897 40131 41013 47089 49049 50127 50421 59241 60543 63063 64449 64827 73997 74431 76167 79233 87451 93093 93639 95139 95697 101871 112437 116963 117649 119691 120393 137423 138229 141267 147147 150381 151263 177723 181629 184877 189189 217217 218491 221991 223293 237699 262353 279279 280917 285417 287091 329623 337311 343343 350889 352947 412269 414687 423801 441441 451143 453789 517979 521017 533169 554631 612157 651651 655473 665973 669879 713097 787059 818741 823543 837837 842751 961961 967603 988869 1030029 1052667 1058841 1236807 1244061 1271403 1294139 1324323 1520519 1529437 1553937 1563051 1663893 1836471 1954953 1966419 1997919 2009637 2307361 2361177 2403401 2456223 2470629 2885883 2902809 2966607 3090087 3158001 3176523 3625853 3647119 3710421 3732183 3882417 4285099 4561557 4588311 4661811 4689153 4991679 5509413 5731187 5764801 5864859 5899257 6733727 6773221 6922083 7210203 7368669 7411887 8657649 8708427 8899821 9058973 9270261 10643633 10706059 10877559 10941357 11647251 12855297 13684671 13764933 13985433 14067459 16151527 16528239 16823807 17193561 17294403 20201181 20319663 20766249 21630609 22106007 22235661 25380971 25529833 25972947 26125281 27176919 29995693 31930899 32118177 32632677 32824071 34941753 38565891 40118309 41054013 41294799 47136089 47412547 48454581 50471421 51580683 51883209 60603543 60958989 62298747 63412811 64891827 74505431 74942413 76142913 76589499 81530757 89987079 95792697 96354531 97898031 98472213 113060689 115697673 117766649 120354927 141408267 142237641 145363743 151414263 154742049 155649627 177666797 178708831 181810629 182876967 190238433 209969851 223516293 224827239 228428739 229768497 244592271 269961237 280828163 287378091 289063593 329952623 331887829 339182067 353299947 361064781 424224801 426712923 436091229 454242789 521538017 533000391 536126493 570715299 629909553 670548879 674481717 685286217 689305491 791424823 809883711 824366543 842484489 989857869 995663487 1017546201 1059899841 1083194343 1243667579 1272674403 1280138769 1469788957 1564614051 1599001173 1608379479 1712145897 1889728659 1965797141 2011646637 2023445151 2309668361 2323214803 2374274469 2473099629 2527453467 2969573607 2986990461 3052638603 3179699523 3650766119 3731002737 4409366871 4693842153 4797003519 4825138437 5539973761 5669185977 5897391423 6929005083 6969644409 7122823407 7419298887 7582360401 8705673053 8908720821 8960971383 10288522699 10952298357 11193008211 13228100613 14081526459 16167678527 16619921283 17692174269 20787015249 20908933227 21368470221 22257896661 25555362833 26117019159 30865568097 32856895071 33579024633 39684301839 48503035581 49859763849 53076522807 60939711371 62361045747 62726799681 72019658893 76666088499 78351057477 92596704291 98570685213 113173749689 145509106743 149579291547 182819134113 216058976679 229998265497 235053172431 277790112873 339521249067 436527320229 548457402339 648176930037 689994796491 792216247823 1018563747201 1645372207017 1944530790111 2376648743469 3055691241603 7129946230407 21389838691221
- Sum of all divisors σ(n): 44879666448960
- Sum of proper divisors (its aliquot sum) s(n): 23489827757739
- 21389838691221 is an abundant number, because the sum of its proper divisors (23489827757739) is greater than itself. Its abundance is 2099989066518
Bases of 21389838691221
- Binary: 1001101110100001101011011110010101011100101012
- Hexadecimal: 0x137435BCAB95
- Base-36: 7KYCTOQZ9
Squares and roots of 21389838691221
- 21389838691221 squared (213898386912212) is 457525199236454902182470841
- 21389838691221 cubed (213898386912213) is 9786390208836519793410491670183435186861
-
The
square root of 21389838691221 is 4624914.9928643013 -
The
cube root of 21389838691221 is 27758.9160284637
Scales and comparisons
How big is 21389838691221?- 21,389,838,691,221 seconds is equal to 680,130 years, 36 weeks, 5 days, 10 hours, 40 minutes, 21 seconds.
-
To count from 1 to 21,389,838,691,221 would take you about one million, seven hundred thousand, three hundred twenty-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 21389838691221 cubic inches would be around 2313.2 feet tall.
Recreational maths with 21389838691221
- 21389838691221 backwards is 12219683898312
- 21389838691221 is a
Harshad number . - The number of decimal digits it has is: 14
- The sum of 21389838691221's digits is 63
- More coming soon!
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The information we have on file for 21389838691221 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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