391997200020

Names of 391997200020

• Cardinal: 391997200020 can be written as Three hundred ninety-one billion, nine hundred ninety-seven million, two hundred thousand and twenty.

Scientific notation

• Scientific notation: 3.9199720002 × 10¹¹

Factors of 391997200020

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 952542

Divisors of 391997200020

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 190 228 285 361 380 570 722 1083 1140 1444 1805 2166 3610 4332 5415 6859 7220 10830 13718 20577 21660 27436 34295 41154 68590 82308 102885 137180 205770 411540 952513 1905026 2857539 3810052 4762565 5715078 9525130 11430156 14287695 18097747 19050260 28575390 36195494 54293241 57150780 72390988 90488735 108586482 180977470 217172964 271466205 343857193 361954940 542932410 687714386 1031571579 1085864820 1375428772 1719285965 2063143158 3438571930 4126286316 5157857895 6533286667 6877143860 10315715790 13066573334 19599860001 20631431580 26133146668 32666433335 39199720002 65332866670 78399440004 97999300005 130665733340 195998600010 391997200020
• Sum of all divisors σ(n): 1158561828480
• Sum of proper divisors (its aliquot sum) s(n): 766564628460
• 391997200020 is an abundant number, because the sum of its proper divisors (766564628460) is greater than itself. Its abundance is 374567428440

Bases of 391997200020

• Binary: 101101101000100110110101001011010010100₂
• Hexadecimal: 0x5B44DA9694
• Base-36: 502X0FBO

Squares and roots of 391997200020

• 391997200020 squared (391997200020²) is 153661804823519888000400
• 391997200020 cubed (391997200020³) is 60234997240839526336940796640008000
• The square root of 391997200020 is 626096.7976439425
• The cube root of 391997200020 is 7318.5939948637

Scales and comparisons

• 391,997,200,020 seconds is equal to 12,464 years, 15 weeks, 3 days, 15 hours, 7 minutes.
• To count from 1 to 391,997,200,020 would take you about twenty-four thousand, nine hundred twenty-eight 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 391997200020 cubic inches would be around 609.9 feet tall.

Recreational maths with 391997200020

• 391997200020 backwards is 020002799193
• The number of decimal digits it has is: 12
• The sum of 391997200020's digits is 42
• More coming soon!