20823091821

Names of 20823091821

• Cardinal: 20823091821 can be written as Twenty billion, eight hundred twenty-three million, ninety-one thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 2.0823091821 × 10¹⁰

Factors of 20823091821

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1121

Divisors of 20823091821

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 21 27 29 61 63 87 183 189 203 261 427 549 609 783 1021 1281 1647 1769 1827 3063 3721 3843 5307 5481 7147 9189 11163 11529 12383 15921 21441 26047 27567 29609 33489 37149 47763 62281 64323 78141 88827 100467 107909 111447 186843 192969 207263 234423 266481 323727 334341 435967 560529 621789 703269 755363 799443 971181 1307901 1681587 1806149 1865367 2266089 2913543 3799141 3923703 5418447 5596101 6798267 11397423 11771109 12643043 16255341 20394801 26593987 34192269 37929129 48766023 79781961 102576807 110175089 113787387 239345883 330525267 341362161 718037649 771225623 991575801 2313676869 2974727403 6941030607 20823091821
• Sum of all divisors σ(n): 37115769600
• Sum of proper divisors (its aliquot sum) s(n): 16292677779
• 20823091821 is a deficient number, because the sum of its proper divisors (16292677779) is less than itself. Its deficiency is 4530414042

Bases of 20823091821

• Binary: 10011011001001001110010101001101101₂
• Hexadecimal: 0x4D9272A6D
• Base-36: 9KDJ4H9

Squares and roots of 20823091821

• 20823091821 squared (20823091821²) is 433601152985797096041
• 20823091821 cubed (20823091821³) is 9028916622314721239736898580661
• The square root of 20823091821 is 144302.0852967829
• The cube root of 20823091821 is 2751.1550771255

Scales and comparisons

• 20,823,091,821 seconds is equal to 662 years, 5 weeks, 5 days, 10 minutes, 21 seconds.
• To count from 1 to 20,823,091,821 would take you about one thousand, three hundred twenty-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 20823091821 cubic inches would be around 229.3 feet tall.

Recreational maths with 20823091821

• 20823091821 backwards is 12819032802
• The number of decimal digits it has is: 11
• The sum of 20823091821's digits is 36
• More coming soon!