21678349397306355

Names of 21678349397306355

• Cardinal: 21678349397306355 can be written as Twenty-one quadrillion, six hundred seventy-eight trillion, three hundred forty-nine billion, three hundred ninety-seven million, three hundred six thousand, three hundred fifty-five.

Scientific notation

• Scientific notation: 2.1678349397306355 × 10¹⁶

Factors of 21678349397306355

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 5175

Divisors of 21678349397306355

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 5 9 13 15 27 39 45 53 65 117 135 159 169 195 265 351 477 507 585 689 795 845 1431 1521 1755 2067 2197 2385 2535 2809 3445 4563 5101 6201 6591 7155 7605 8427 8957 10335 10985 14045 15303 18603 19773 22815 25281 25505 26871 31005 32955 36517 42135 44785 45909 59319 66313 75843 76515 80613 93015 98865 109551 116441 126405 134355 137727 182585 198939 229545 241839 270353 296595 328653 331565 349323 379215 403065 474721 547755 582205 596817 688635 811059 862069 985959 994695 1047969 1209195 1351765 1424163 1643265 1746615 1790451 2373605 2433177 2586207 2984085 3143907 3514589 4055295 4272489 4310345 4929795 5239845 6171373 7120815 7299531 7758621 8952255 10543767 11206897 12165885 12817467 12931035 14328709 15719535 17572945 18514119 21362445 23275863 26020201 30856865 31631301 33620691 36497655 38793105 42986127 45689657 52718835 55542357 56034485 64087335 71643545 78060603 92570595 94893903 100862073 116379315 128958381 130101005 137068971 158156505 166627071 168103455 186273217 214930635 228448285 234181809 277711785 302586219 338262613 386875143 390303015 411206913 474469515 504310365 558819651 593965541 644791905 685344855 702545427 833135355 931366085 1014787839 1170909045 1233620739 1379070653 1512931095 1676458953 1691313065 1781896623 1934375715 2056034565 2421551821 2794098255 2969827705 3044363517 3512727135 4137211959 4397413969 5029376859 5073939195 5345689869 6168103695 6895353265 7264655463 8382294765 8909483115 9133090551 12107759105 12411635877 13192241907 15221817585 16037069607 17927918489 20686059795 21793966389 21987069845 25146884295 26728449345 31480173673 36323277315 37234907631 39576725721 45665452755 53783755467 57166381597 62058179385 65381899167 65961209535 73090744609 80185348035 89639592445 94440521019 108969831945 118730177163 157400868365 161351266401 171499144791 186174538155 197883628605 219272233827 233062940357 268918777335 283321563057 285831907985 326909495835 365453723045 472202605095 484053799203 514497434373 593650885815 657816701481 699188821071 806756332005 849964689171 857495723955 950179679917 1096361169135 1165314701785 1416607815285 1543492303119 1973450104443 2097566463213 2420268996015 2572487171865 2850539039751 3029818224641 3289083507405 3495944105355 4249823445855 4750898399585 6292699389639 7717461515595 8551617119253 9089454673923 9867250522215 10487832316065 12352335838921 14252695198755 15149091123205 25654851357759 27268364021769 31463496948195 37057007516763 42758085596265 45447273369615 61761679194605 81805092065307 111171022550289 128274256788795 136341820108845 160580365905973 185285037583815 333513067650867 409025460326535 481741097717919 555855112751445 802901829529865 1445223293153757 1667565338254335 2408705488589595 4335669879461271 7226116465768785 21678349397306355
• Sum of all divisors σ(n): 42560364749716800
• Sum of proper divisors (its aliquot sum) s(n): 20882015352410445
• 21678349397306355 is a deficient number, because the sum of its proper divisors (20882015352410445) is less than itself. Its deficiency is 796334044895910

Bases of 21678349397306355

• Binary: 1001101000001000101100000001011001001001010101111110011₂
• Hexadecimal: 0x4D04580B24ABF3
• Base-36: 5XGC088REUR

Squares and roots of 21678349397306355

• 21678349397306355 squared (21678349397306355²) is 469950832591692805068129723386025
• 21678349397306355 cubed (21678349397306355³) is 10187758348477743455276556582179858738384850688875
• The square root of 21678349397306355 is 147235693.3535695175
• The cube root of 21678349397306355 is 278831.6511880657

Scales and comparisons

• 21,678,349,397,306,355 seconds is equal to 689,304,455 years, 15 weeks, 3 days, 1 hour, 59 minutes, 15 seconds.
• To count from 1 to 21,678,349,397,306,355 would take you about two billion, sixty-seven million, nine hundred thirteen thousand, three hundred sixty-five 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 21678349397306355 cubic inches would be around 23236 feet tall.

Recreational maths with 21678349397306355

• 21678349397306355 backwards is 55360379394387612
• The number of decimal digits it has is: 17
• The sum of 21678349397306355's digits is 81
• More coming soon!