668957690272

Names of 668957690272

• Cardinal: 668957690272 can be written as Six hundred sixty-eight billion, nine hundred fifty-seven million, six hundred ninety thousand, two hundred seventy-two.

Scientific notation

• Scientific notation: 6.68957690272 × 10¹¹

Factors of 668957690272

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 49729

Divisors of 668957690272

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 8 16 19 32 38 76 149 152 298 304 596 608 1192 2384 2831 4768 5662 11324 22201 22648 44402 45296 49559 88804 90592 99118 177608 198236 355216 396472 421819 710432 792944 843638 941621 1585888 1687276 1883242 3374552 3766484 6749104 7384291 7532968 13498208 14768582 15065936 29537164 30131872 59074328 118148656 140301529 236297312 280603058 561206116 1100259359 1122412232 2200518718 2244824464 4401037436 4489648928 8802074872 17604149744 20904927821 35208299488 41809855642 83619711284 167239422568 334478845136 668957690272
• Sum of all divisors σ(n): 1395721605600
• Sum of proper divisors (its aliquot sum) s(n): 726763915328
• 668957690272 is an abundant number, because the sum of its proper divisors (726763915328) is greater than itself. Its abundance is 57806225056

Bases of 668957690272

• Binary: 1001101111000000111111000100100110100000₂
• Hexadecimal: 0x9BC0FC49A0
• Base-36: 8JBC4XB4

Squares and roots of 668957690272

• 668957690272 squared (668957690272²) is 447504391374049083433984
• 668957690272 cubed (668957690272³) is 299361504040160995254356554831003648
• The square root of 668957690272 is 817898.3373696269
• The cube root of 668957690272 is 8745.8001734283

Scales and comparisons

• 668,957,690,272 seconds is equal to 21,270 years, 40 weeks, 5 days, 20 hours, 37 minutes, 52 seconds.
• To count from 1 to 668,957,690,272 would take you about forty-two thousand, five hundred forty-one 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 668957690272 cubic inches would be around 728.8 feet tall.

Recreational maths with 668957690272

• 668957690272 backwards is 272096759866
• The number of decimal digits it has is: 12
• The sum of 668957690272's digits is 67
• More coming soon!