12991126616

Names of 12991126616

• Cardinal: 12991126616 can be written as Twelve billion, nine hundred ninety-one million, one hundred twenty-six thousand, six hundred sixteen.

Scientific notation

• Scientific notation: 1.2991126616 × 10¹⁰

Factors of 12991126616

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 53912

Divisors of 12991126616

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 8 13 23 26 46 52 92 101 104 184 202 299 404 598 808 1196 1313 2323 2392 2626 4646 5252 9292 10504 18584 30199 53773 60398 107546 120796 215092 241592 430184 699049 1236779 1398098 2473558 2796196 4947116 5431073 5592392 9894232 10862146 16078127 21724292 32156254 43448584 64312508 70603949 124914679 128625016 141207898 249829358 282415796 499658716 564831592 999317432 1623890827 3247781654 6495563308 12991126616
• Sum of all divisors σ(n): 27644137920
• Sum of proper divisors (its aliquot sum) s(n): 14653011304
• 12991126616 is an abundant number, because the sum of its proper divisors (14653011304) is greater than itself. Its abundance is 1661884688

Bases of 12991126616

• Binary: 1100000110010101001101110001011000₂
• Hexadecimal: 0x30654DC58
• Base-36: 5YUKXG8

Squares and roots of 12991126616

• 12991126616 squared (12991126616²) is 168769370752943611456
• 12991126616 cubed (12991126616³) is 2192504264354137711133204112896
• The square root of 12991126616 is 113978.6235045853
• The cube root of 12991126616 is 2350.7995840157

Scales and comparisons

• 12,991,126,616 seconds is equal to 413 years, 4 weeks, 6 hours, 16 minutes, 56 seconds.
• To count from 1 to 12,991,126,616 would take you about eight hundred twenty-six 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 12991126616 cubic inches would be around 195.9 feet tall.

Recreational maths with 12991126616

• 12991126616 backwards is 61662119921
• The number of decimal digits it has is: 11
• The sum of 12991126616's digits is 44
• More coming soon!