13158491968

Names of 13158491968

• Cardinal: 13158491968 can be written as Thirteen billion, one hundred fifty-eight million, four hundred ninety-one thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 1.3158491968 × 10¹⁰

Factors of 13158491968

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1877

Divisors of 13158491968

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 8 16 32 64 409 547 818 919 1094 1636 1838 2188 3272 3676 4376 6544 7352 8752 13088 14704 17504 26176 29408 35008 58816 223723 375871 447446 502693 751742 894892 1005386 1503484 1789784 2010772 3006968 3579568 4021544 6013936 7159136 8043088 12027872 14318272 16086176 24055744 32172352 205601437 411202874 822405748 1644811496 3289622992 6579245984 13158491968
• Sum of all divisors σ(n): 26251611200
• Sum of proper divisors (its aliquot sum) s(n): 13093119232
• 13158491968 is a deficient number, because the sum of its proper divisors (13093119232) is less than itself. Its deficiency is 65372736

Bases of 13158491968

• Binary: 1100010000010011101010011101000000₂
• Hexadecimal: 0x3104EA740
• Base-36: 61M85DS

Squares and roots of 13158491968

• 13158491968 squared (13158491968²) is 173145910871920513024
• 13158491968 cubed (13158491968³) is 2278339077500209947360743391232
• The square root of 13158491968 is 114710.4701760045
• The cube root of 13158491968 is 2360.8516968089

Scales and comparisons

• 13,158,491,968 seconds is equal to 418 years, 20 weeks, 5 days, 8 hours, 39 minutes, 28 seconds.
• To count from 1 to 13,158,491,968 would take you about eight hundred thirty-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 13158491968 cubic inches would be around 196.7 feet tall.

Recreational maths with 13158491968

• 13158491968 backwards is 86919485131
• The number of decimal digits it has is: 11
• The sum of 13158491968's digits is 55
• More coming soon!