668357664012

Names of 668357664012

• Cardinal: 668357664012 can be written as Six hundred sixty-eight billion, three hundred fifty-seven million, six hundred sixty-four thousand and twelve.

Scientific notation

• Scientific notation: 6.68357664012 × 10¹¹

Factors of 668357664012

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 913

Divisors of 668357664012

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 6 9 12 18 27 36 54 97 108 194 291 388 582 811 873 1164 1622 1746 2433 2619 3244 3492 4866 5238 7299 9409 9732 10476 14598 18818 21897 28227 29196 37636 43794 56454 78667 84681 87588 112908 157334 169362 236001 254043 314668 338724 472002 508086 657721 708003 944004 1016172 1315442 1416006 1973163 2124009 2630884 2832012 3946326 4248018 5919489 7630699 7892652 8496036 11838978 15261398 17758467 22892097 23677956 30522796 35516934 45784194 63798937 68676291 71033868 91568388 127597874 137352582 191396811 206028873 255195748 274705164 382793622 412057746 574190433 765587244 824115492 1148380866 1722571299 2296761732 3445142598 6188496889 6890285196 12376993778 18565490667 24753987556 37130981334 55696472001 74261962668 111392944002 167089416003 222785888004 334178832006 668357664012
• Sum of all divisors σ(n): 1752988504680
• Sum of proper divisors (its aliquot sum) s(n): 1084630840668
• 668357664012 is an abundant number, because the sum of its proper divisors (1084630840668) is greater than itself. Its abundance is 416273176656

Bases of 668357664012

• Binary: 1001101110011101001110001001110100001100₂
• Hexadecimal: 0x9B9D389D0C
• Base-36: 8J1EWA30

Squares and roots of 668357664012

• 668357664012 squared (668357664012²) is 446701967043577479936144
• 668357664012 cubed (668357664012³) is 298556683202810854297651002766849728
• The square root of 668357664012 is 817531.4452741253
• The cube root of 668357664012 is 8743.1845224353

Scales and comparisons

• 668,357,664,012 seconds is equal to 21,251 years, 36 weeks, 5 days, 2 hours, 40 minutes, 12 seconds.
• To count from 1 to 668,357,664,012 would take you about forty-two thousand, five hundred three 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 668357664012 cubic inches would be around 728.6 feet tall.

Recreational maths with 668357664012

• 668357664012 backwards is 210466753866
• 668357664012 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 668357664012's digits is 54
• More coming soon!