21037638720378771

Names of 21037638720378771

• Cardinal: 21037638720378771 can be written as Twenty-one quadrillion, thirty-seven trillion, six hundred thirty-eight billion, seven hundred twenty million, three hundred seventy-eight thousand, seven hundred seventy-one.

Scientific notation

• Scientific notation: 2.1037638720378771 × 10¹⁶

Factors of 21037638720378771

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 20377

Divisors of 21037638720378771

• Number of divisors d(n): 80
• Complete list of divisors:
  1 3 9 27 81 1249 3571 3747 6277 9277 10713 11241 18831 27831 32139 33723 56493 83493 96417 101169 169479 250479 289251 508437 751437 4460179 7839973 11586973 13380537 22415167 23519919 33128167 34760919 40141611 58231729 67245501 70559757 99384501 104282757 120424833 174695187 201736503 211679271 298153503 312848271 361274499 524085561 605209509 635037813 894460509 938544813 1572256683 1815628527 2683381527 4716770049 27996543583 41377080583 72731429521 83989630749 124131241749 207945504259 218194288563 251968892247 372393725247 623836512777 654582865689 755906676741 1117181175741 1871509538331 1963748597067 2267720030223 3351543527223 5614528614993 5891245791201 16843585844979 259723934819491 779171804458473 2337515413375419 7012546240126257 21037638720378771
• Sum of all divisors σ(n): 31468968890260000
• Sum of proper divisors (its aliquot sum) s(n): 10431330169881229
• 21037638720378771 is a deficient number, because the sum of its proper divisors (10431330169881229) is less than itself. Its deficiency is 10606308550497542

Bases of 21037638720378771

• Binary: 1001010101111011001111011110110110101110101011110010011₂
• Hexadecimal: 0x4ABD9EF6D75793
• Base-36: 5R57XT2DM6R

Squares and roots of 21037638720378771

• 21037638720378771 squared (21037638720378771²) is 442582242929180133311369707470441
• 21037638720378771 cubed (21037638720378771³) is 9310885330799003509142561662389703652543806408011
• The square root of 21037638720378771 is 145043575.2468159859
• The cube root of 21037638720378771 is 276057.1484281637

Scales and comparisons

• 21,037,638,720,378,771 seconds is equal to 668,931,837 years, 32 weeks, 1 day, 6 hours, 32 minutes, 51 seconds.
• To count from 1 to 21,037,638,720,378,771 would take you about two billion, six million, seven hundred ninety-five thousand, five hundred twelve 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 21037638720378771 cubic inches would be around 23004.8 feet tall.

Recreational maths with 21037638720378771

• 21037638720378771 backwards is 17787302783673012
• The number of decimal digits it has is: 17
• The sum of 21037638720378771's digits is 72
• More coming soon!