21120881648461

Names of 21120881648461

• Cardinal: 21120881648461 can be written as Twenty-one trillion, one hundred twenty billion, eight hundred eighty-one million, six hundred forty-eight thousand, four hundred sixty-one.

Scientific notation

• Scientific notation: 2.1120881648461 × 10¹³

Factors of 21120881648461

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 626

Divisors of 21120881648461

• Number of divisors d(n): 192
• Complete list of divisors:
  1 7 19 23 49 79 89 133 161 343 409 437 553 623 931 1127 1501 1691 1817 2047 2401 2863 3059 3871 4361 6517 7031 7771 7889 9407 10507 11837 12719 14329 16807 20041 21413 27097 30527 32311 34523 36401 38893 45619 49217 54397 55223 65849 73549 82859 89033 100303 133589 140287 149891 161713 178733 189679 213689 226177 241661 254807 272251 319333 344519 380779 386561 460943 514843 580013 613909 623231 691619 702121 743153 837223 935123 982009 1049237 1131991 1251131 1327753 1495823 1583239 1691627 1783649 1905757 2411633 2665453 2875679 3072547 3226601 3603901 4060091 4297363 4362617 4841333 4914847 5202071 5860561 6545861 6874063 7344659 7923937 8757917 11082673 11841389 12485543 13340299 14119907 15907237 16881431 18658171 20129753 21507829 22586207 25227307 28420637 30081541 30538319 33889331 34403929 36414497 41023927 45821027 54637901 55467559 61305419 66140617 77578711 82889723 87398801 93382093 98839349 111350659 118170017 130607197 140908271 150554803 158103449 210570787 237225317 254901479 287167489 320747189 382465307 388272913 429137933 462984319 543050977 580228061 611791607 653674651 691875443 779454613 986357897 1053883621 1256671723 1473995509 1660577219 1784310353 2010172423 2245230323 2677257149 2717910391 3003965531 3240890233 4843128101 5456182291 6904505279 7377185347 8796702061 10317968563 11624040533 12490172471 14071206961 18740800043 22686231631 33901896707 38193276037 48331536953 51640297429 61576914427 131185600301 158803621417 237313276949 267352932259 431038400989 918299202107 1111625349919 3017268806923 21120881648461
• Sum of all divisors σ(n): 27783751680000
• Sum of proper divisors (its aliquot sum) s(n): 6662870031539
• 21120881648461 is a deficient number, because the sum of its proper divisors (6662870031539) is less than itself. Its deficiency is 14458011616922

Bases of 21120881648461

• Binary: 100110011010110010110101001011110001101001101₂
• Hexadecimal: 0x133596A5E34D
• Base-36: 7HISRLWLP

Squares and roots of 21120881648461

• 21120881648461 squared (21120881648461²) is 446091641608296648783668521
• 21120881648461 cubed (21120881648461³) is 9421848766776514140616310742393473796181
• The square root of 21120881648461 is 4595746.0382903015
• The cube root of 21120881648461 is 27642.0775462587

Scales and comparisons

• 21,120,881,648,461 seconds is equal to 671,578 years, 36 weeks, 4 days, 17 hours, 1 minute, 1 second.
• To count from 1 to 21,120,881,648,461 would take you about one million, six hundred seventy-eight thousand, nine 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 21120881648461 cubic inches would be around 2303.5 feet tall.

Recreational maths with 21120881648461

• 21120881648461 backwards is 16484618802112
• The number of decimal digits it has is: 14
• The sum of 21120881648461's digits is 52
• More coming soon!