20840399267821

Names of 20840399267821

• Cardinal: 20840399267821 can be written as Twenty trillion, eight hundred forty billion, three hundred ninety-nine million, two hundred sixty-seven thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 2.0840399267821 × 10¹³

Factors of 20840399267821

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 477

Divisors of 20840399267821

• Number of divisors d(n): 108
• Complete list of divisors:
  1 7 19 71 73 133 307 361 497 511 1349 1387 2149 2527 5041 5183 5329 5833 9443 9709 21797 22411 25631 26353 35287 36281 37303 40831 95779 98477 101251 110827 152579 156877 179417 184471 367993 378359 414143 425809 670453 689339 708757 775789 1547587 1591181 1636003 1819801 1871063 1923769 2575951 2648513 2899001 2980663 6991867 7188821 7868717 8090371 10833109 11138267 11452021 12738607 13097441 13466383 26863489 29404153 30232439 31084057 48943069 50321747 55081019 56632597 112973851 116156213 132845473 136587599 188044423 205829071 211627073 217588399 510406291 558678907 574416341 590597083 790816957 813093491 929918311 956113193 2146503169 2206968047 3572844037 3910752349 4020914387 4134179581 8247091123 9697719529 15025522183 15448776329 40783560211 41932392893 57729637861 67884036703 156694731337 285484921477 293526750251 1096863119359 2977199895403 20840399267821
• Sum of all divisors σ(n): 25934414004576
• Sum of proper divisors (its aliquot sum) s(n): 5094014736755
• 20840399267821 is a deficient number, because the sum of its proper divisors (5094014736755) is less than itself. Its deficiency is 15746384531066

Bases of 20840399267821

• Binary: 100101111010001001000100110000110011111101101₂
• Hexadecimal: 0x12F4489867ED
• Base-36: 7DXY3N2LP

Squares and roots of 20840399267821

• 20840399267821 squared (20840399267821²) is 434322241642194072886088041
• 20840399267821 cubed (20840399267821³) is 9051448926718356793235215117993344228661
• The square root of 20840399267821 is 4565128.6145979501
• The cube root of 20840399267821 is 27519.1708827103

Scales and comparisons

• 20,840,399,267,821 seconds is equal to 662,660 years, 12 weeks, 20 hours, 37 minutes, 1 second.
• To count from 1 to 20,840,399,267,821 would take you about one million, six hundred fifty-six thousand, six hundred fifty 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 20840399267821 cubic inches would be around 2293.3 feet tall.

Recreational maths with 20840399267821

• 20840399267821 backwards is 12876299304802
• The number of decimal digits it has is: 14
• The sum of 20840399267821's digits is 61
• More coming soon!