13126536391

Names of 13126536391

• Cardinal: 13126536391 can be written as Thirteen billion, one hundred twenty-six million, five hundred thirty-six thousand, three hundred ninety-one.

Scientific notation

• Scientific notation: 1.3126536391 × 10¹⁰

Factors of 13126536391

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 179815640

Divisors of 13126536391

• Number of divisors d(n): 4
• Complete list of divisors:
  1 73 179815567 13126536391
• Sum of all divisors σ(n): 13306352032
• Sum of proper divisors (its aliquot sum) s(n): 179815641
• 13126536391 is a deficient number, because the sum of its proper divisors (179815641) is less than itself. Its deficiency is 12946720750

Bases of 13126536391

• Binary: 1100001110011001110000110011000111₂
• Hexadecimal: 0x30E670CC7
• Base-36: 61378AV

Squares and roots of 13126536391

• 13126536391 squared (13126536391²) is 172305957624247304881
• 13126536391 cubed (13126536391³) is 2261780423140786151504118424471
• The square root of 13126536391 is 114571.0975377299
• The cube root of 13126536391 is 2358.9390274889

Scales and comparisons

• 13,126,536,391 seconds is equal to 417 years, 19 weeks, 6 days, 12 hours, 6 minutes, 31 seconds.
• To count from 1 to 13,126,536,391 would take you about eight hundred thirty-four 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 13126536391 cubic inches would be around 196.6 feet tall.

Recreational maths with 13126536391

• 13126536391 backwards is 19363562131
• The number of decimal digits it has is: 11
• The sum of 13126536391's digits is 40
• More coming soon!