21421536061871736

Names of 21421536061871736

• Cardinal: 21421536061871736 can be written as Twenty-one quadrillion, four hundred twenty-one trillion, five hundred thirty-six billion, sixty-one million, eight hundred seventy-one thousand, seven hundred thirty-six.

Scientific notation

• Scientific notation: 2.1421536061871736 × 10¹⁶

Factors of 21421536061871736

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2289173602

Divisors of 21421536061871736

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 81 84 108 126 162 168 189 216 252 324 378 504 567 648 756 1134 1512 2063 2268 4126 4536 6189 8252 12378 14441 16504 18567 24756 28882 37134 43323 49512 55701 57764 74268 86646 111402 115528 129969 148536 167103 173292 222804 259938 334206 346584 389907 445608 519876 668412 779814 1039752 1169721 1336824 1559628 2339442 3119256 4678884 9357768 2289171527 4578343054 6867514581 9156686108 13735029162 16024200689 18313372216 20602543743 27470058324 32048401378 41205087486 48072602067 54940116648 61807631229 64096802756 82410174972 96145204134 123615262458 128193605512 144217806201 164820349944 185422893687 192290408268 247230524916 288435612402 370845787374 384580816536 432653418603 494461049832 576871224804 741691574748 865306837206 1153742449608 1297960255809 1483383149496 1730613674412 2595920511618 3461227348824 4722560860201 5191841023236 9445121720402 10383682046472 14167682580603 18890243440804 28335365161206 33057926021407 37780486881608 42503047741809 56670730322412 66115852042814 85006095483618 99173778064221 113341460644824 127509143225427 132231704085628 170012190967236 198347556128442 255018286450854 264463408171256 297521334192663 340024381934472 382527429676281 396695112256884 510036572901708 595042668385326 765054859352562 793390224513768 892564002577989 1020073145803416 1190085336770652 1530109718705124 1785128005155978 2380170673541304 2677692007733967 3060219437410248 3570256010311956 5355384015467934 7140512020623912 10710768030935868 21421536061871736
• Sum of all divisors σ(n): 68604822490659840
• Sum of proper divisors (its aliquot sum) s(n): 47183286428788104
• 21421536061871736 is an abundant number, because the sum of its proper divisors (47183286428788104) is greater than itself. Its abundance is 25761750366916368

Bases of 21421536061871736

• Binary: 1001100000110101100011000000111100000101101011001111000₂
• Hexadecimal: 0x4C1AC60782D678
• Base-36: 5UXATT7KFI0

Squares and roots of 21421536061871736

• 21421536061871736 squared (21421536061871736²) is 458882207250071244041103715653696
• 21421536061871736 cubed (21421536061871736³) is 9829961750758700938864982717112154640600546336256
• The square root of 21421536061871736 is 146360978.6174980997
• The cube root of 21421536061871736 is 277726.2114003349

Scales and comparisons

• 21,421,536,061,871,736 seconds is equal to 681,138,585 years, 31 weeks, 3 days, 13 hours, 15 minutes, 36 seconds.
• To count from 1 to 21,421,536,061,871,736 would take you about two billion, forty-three million, four hundred fifteen thousand, seven hundred fifty-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 21421536061871736 cubic inches would be around 23143.9 feet tall.

Recreational maths with 21421536061871736

• 21421536061871736 backwards is 63717816063512412
• 21421536061871736 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21421536061871736's digits is 63
• More coming soon!