13011987880

Names of 13011987880

• Cardinal: 13011987880 can be written as Thirteen billion, eleven million, nine hundred eighty-seven thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 1.301198788 × 10¹⁰

Factors of 13011987880

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2634

Divisors of 13011987880

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 20 40 337 557 674 1114 1348 1685 1733 2228 2696 2785 3370 3466 4456 5570 6740 6932 8665 11140 13480 13864 17330 22280 34660 69320 187709 375418 584021 750836 938545 965281 1168042 1501672 1877090 1930562 2336084 2920105 3754180 3861124 4672168 4826405 5840210 7508360 7722248 9652810 11680420 19305620 23360840 38611240 325299697 650599394 1301198788 1626498485 2602397576 3252996970 6505993940 13011987880
• Sum of all divisors σ(n): 29433540240
• Sum of proper divisors (its aliquot sum) s(n): 16421552360
• 13011987880 is an abundant number, because the sum of its proper divisors (16421552360) is greater than itself. Its abundance is 3409564480

Bases of 13011987880

• Binary: 1100000111100100110010110110101000₂
• Hexadecimal: 0x307932DA8
• Base-36: 5Z7023S

Squares and roots of 13011987880

• 13011987880 squared (13011987880²) is 169311828589266894400
• 13011987880 cubed (13011987880³) is 2203083461544178328018039872000
• The square root of 13011987880 is 114070.1007275789
• The cube root of 13011987880 is 2352.0572225461

Scales and comparisons

• 13,011,987,880 seconds is equal to 413 years, 38 weeks, 3 days, 17 hours, 4 minutes, 40 seconds.
• To count from 1 to 13,011,987,880 would take you about eight hundred twenty-seven 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 13011987880 cubic inches would be around 196 feet tall.

Recreational maths with 13011987880

• 13011987880 backwards is 08878911031
• The number of decimal digits it has is: 11
• The sum of 13011987880's digits is 46
• More coming soon!