13211785940

Names of 13211785940

• Cardinal: 13211785940 can be written as Thirteen billion, two hundred eleven million, seven hundred eighty-five thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.321178594 × 10¹⁰

Factors of 13211785940

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 628

Divisors of 13211785940

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 5 10 20 53 106 179 212 265 358 389 530 716 778 895 1060 1556 1790 1945 3580 3890 7780 9487 18974 20617 32041 37948 41234 47435 64082 69631 82468 94870 103085 128164 139262 160205 189740 206170 278524 320410 348155 412340 640820 696310 1392620 1698173 3396346 3690443 6792692 7380886 8490865 12463949 14761772 16981730 18452215 24927898 33963460 36904430 49855796 62319745 73808860 124639490 249278980 660589297 1321178594 2642357188 3302946485 6605892970 13211785940
• Sum of all divisors σ(n): 28500118920
• Sum of proper divisors (its aliquot sum) s(n): 15288332980
• 13211785940 is an abundant number, because the sum of its proper divisors (15288332980) is greater than itself. Its abundance is 2076547040

Bases of 13211785940

• Binary: 1100010011011110111101101011010100₂
• Hexadecimal: 0x3137BDAD4
• Base-36: 62HYF9W

Squares and roots of 13211785940

• 13211785940 squared (13211785940²) is 174551287724381683600
• 13211785940 cubed (13211785940³) is 2306134248965880522580008584000
• The square root of 13211785940 is 114942.5332068161
• The cube root of 13211785940 is 2364.0346776349

Scales and comparisons

• 13,211,785,940 seconds is equal to 420 years, 4 weeks, 6 days, 4 hours, 32 minutes, 20 seconds.
• To count from 1 to 13,211,785,940 would take you about eight hundred forty 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 13211785940 cubic inches would be around 197 feet tall.

Recreational maths with 13211785940

• 13211785940 backwards is 04958711231
• The number of decimal digits it has is: 11
• The sum of 13211785940's digits is 41
• More coming soon!