21391401994326

Names of 21391401994326

• Cardinal: 21391401994326 can be written as Twenty-one trillion, three hundred ninety-one billion, four hundred one million, nine hundred ninety-four thousand, three hundred twenty-six.

Scientific notation

• Scientific notation: 2.1391401994326 × 10¹³

Factors of 21391401994326

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 201476

Divisors of 21391401994326

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 27 39 42 49 54 63 78 81 91 98 117 126 147 162 182 189 234 243 273 294 343 351 378 441 486 546 567 637 686 702 819 882 1029 1053 1134 1274 1323 1638 1701 1911 2058 2106 2401 2457 2646 3087 3159 3402 3822 3969 4459 4802 4914 5733 6174 6318 7203 7371 7938 8918 9261 11466 11907 13377 14406 14742 16807 17199 18522 21609 22113 23814 26754 27783 31213 33614 34398 40131 43218 44226 50421 51597 55566 62426 64827 80262 83349 93639 100842 103194 120393 129654 151263 154791 166698 187278 194481 201451 218491 240786 280917 302526 309582 361179 388962 402902 436982 453789 561834 583443 604353 655473 722358 842751 907578 1083537 1166886 1208706 1310946 1361367 1410157 1685502 1813059 1966419 2167074 2528253 2618863 2722734 2820314 3626118 3932838 4084101 4230471 5056506 5237726 5439177 5899257 7584759 7856589 8168202 8460942 9871099 10878354 11798514 12691413 15169518 15713178 16317531 17697771 18332041 19742198 23569767 25382826 29613297 32635062 35395542 36664082 38074239 47139534 48952593 53093313 54996123 59226594 69097693 70709301 76148478 88839891 97905186 106186626 109992246 114222717 128324287 138195386 141418602 164988369 177679782 207293079 212127903 228445434 256648574 266519673 329976738 342668151 384972861 414586158 424255806 483683851 494965107 533039346 621879237 636383709 685336302 769945722 799559019 898270009 967367702 989930214 1154918583 1243758474 1272767418 1451051553 1484895321 1599118038 1796540018 1865637711 2309837166 2398677057 2694810027 2902103106 2969790642 3385786957 3464755749 3731275422 4353154659 4454685963 4797354114 5389620054 5596913133 6287890063 6771573914 6929511498 8084430081 8706309318 8909371926 10157360871 10394267247 11193826266 12575780126 13059463977 16168860162 16790739399 18863670189 20314721742 20788534494 24253290243 26118927954 30472082613 31182801741 33581478798 37727340378 39178391931 44015230441 48506580486 56591010567 60944165226 62365603482 72759870729 78356783862 88030460882 91416247839 113182021134 117535175793 132045691323 145519741458 169773031701 182832495678 218279612187 235070351586 264091382646 274248743517 339546063402 396137073969 436559224374 509319095103 548497487034 792274147938 822746230551 1018638190206 1188411221907 1527957285309 1645492461102 2376822443814 3055914570618 3565233665721 7130467331442 10695700997163 21391401994326
• Sum of all divisors σ(n): 60388682635008
• Sum of proper divisors (its aliquot sum) s(n): 38997280640682
• 21391401994326 is an abundant number, because the sum of its proper divisors (38997280640682) is greater than itself. Its abundance is 17605878646356

Bases of 21391401994326

• Binary: 100110111010010010010111010101100100001010110₂
• Hexadecimal: 0x137492EAC856
• Base-36: 7KZ2OFRDI

Squares and roots of 21391401994326

• 21391401994326 squared (21391401994326²) is 457592079282854370136194276
• 21391401994326 cubed (21391401994326³) is 9788536117359032081189210811862185677976
• The square root of 21391401994326 is 4625083.9986238089
• The cube root of 21391401994326 is 27759.5922770177

Scales and comparisons

• 21,391,401,994,326 seconds is equal to 680,180 years, 21 weeks, 4 days, 5 hours, 32 minutes, 6 seconds.
• To count from 1 to 21,391,401,994,326 would take you about one million, seven hundred thousand, four hundred fifty-one 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 21391401994326 cubic inches would be around 2313.3 feet tall.

Recreational maths with 21391401994326

• 21391401994326 backwards is 62349910419312
• 21391401994326 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21391401994326's digits is 54
• More coming soon!