21013794919824

Names of 21013794919824

• Cardinal: 21013794919824 can be written as Twenty-one trillion, thirteen billion, seven hundred ninety-four million, nine hundred nineteen thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 2.1013794919824 × 10¹³

Factors of 21013794919824

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 939522

Divisors of 21013794919824

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 72101 144202 216303 288404 432606 504707 576808 865212 867409 1009414 1153616 1514121 1730424 1734818 2018828 2602227 3028242 3460848 3469636 4037656 5204454 6056484 6071863 6939272 8075312 10408908 12112968 12143726 13878544 18215589 20817816 24225936 24287452 36431178 41635632 48574904 72862356 97149808 145724712 291449424 62541056309 125082112618 187623168927 250164225236 375246337854 437787394163 500328450472 750492675708 875574788326 1000656900944 1313362182489 1500985351416 1751149576652 2626724364978 3001970702832 3502299153304 5253448729956 7004598306608 10506897459912 21013794919824
• Sum of all divisors σ(n): 62041659853440
• Sum of proper divisors (its aliquot sum) s(n): 41027864933616
• 21013794919824 is an abundant number, because the sum of its proper divisors (41027864933616) is greater than itself. Its abundance is 20014070013792

Bases of 21013794919824

• Binary: 100110001110010100111110010000001010110010000₂
• Hexadecimal: 0x131CA7C81590
• Base-36: 7G5LQXNYO

Squares and roots of 21013794919824

• 21013794919824 squared (21013794919824²) is 441579576932420950588190976
• 21013794919824 cubed (21013794919824³) is 9279262670440538549231592456155120308224
• The square root of 21013794919824 is 4584080.5970035039
• The cube root of 21013794919824 is 27595.2815744713

Scales and comparisons

• 21,013,794,919,824 seconds is equal to 668,173 years, 35 weeks, 1 day, 23 hours, 30 minutes, 24 seconds.
• To count from 1 to 21,013,794,919,824 would take you about one million, six hundred seventy thousand, four hundred thirty-four 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 21013794919824 cubic inches would be around 2299.6 feet tall.

Recreational maths with 21013794919824

• 21013794919824 backwards is 42891949731012
• The number of decimal digits it has is: 14
• The sum of 21013794919824's digits is 60
• More coming soon!