20689665318

Names of 20689665318

• Cardinal: 20689665318 can be written as Twenty billion, six hundred eighty-nine million, six hundred sixty-five thousand, three hundred eighteen.

Scientific notation

• Scientific notation: 2.0689665318 × 10¹⁰

Factors of 20689665318

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5615

Divisors of 20689665318

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 23 42 46 63 69 126 138 161 207 322 414 483 966 1449 1987 2898 3593 3974 5961 7186 10779 11922 13909 17883 21558 25151 27818 32337 35766 41727 45701 50302 64674 75453 82639 83454 91402 125181 137103 150906 165278 226359 247917 250362 274206 319907 411309 452718 495834 578473 639814 743751 822618 959721 1156946 1487502 1735419 1919442 2879163 3470838 5206257 5758326 7139291 10412514 14278582 21417873 42835746 49975037 64253619 99950074 128507238 149925111 164203693 299850222 328407386 449775333 492611079 899550666 985222158 1149425851 1477833237 2298851702 2955666474 3448277553 6896555106 10344832659 20689665318
• Sum of all divisors σ(n): 53500801536
• Sum of proper divisors (its aliquot sum) s(n): 32811136218
• 20689665318 is an abundant number, because the sum of its proper divisors (32811136218) is greater than itself. Its abundance is 12121470900

Bases of 20689665318

• Binary: 10011010001001100110011110100100110₂
• Hexadecimal: 0x4D1333D26
• Base-36: 9I63BXI

Squares and roots of 20689665318

• 20689665318 squared (20689665318²) is 428062250970852041124
• 20689665318 cubed (20689665318³) is 8856464707856649304152732537432
• The square root of 20689665318 is 143839.0257127737
• The cube root of 20689665318 is 2745.2663609267

Scales and comparisons

• 20,689,665,318 seconds is equal to 657 years, 45 weeks, 17 hours, 15 minutes, 18 seconds.
• To count from 1 to 20,689,665,318 would take you about one thousand, three hundred fifteen 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 20689665318 cubic inches would be around 228.8 feet tall.

Recreational maths with 20689665318

• 20689665318 backwards is 81356698602
• The number of decimal digits it has is: 11
• The sum of 20689665318's digits is 54
• More coming soon!