18443858200991

Names of 18443858200991

• Cardinal: 18443858200991 can be written as Eighteen trillion, four hundred forty-three billion, eight hundred fifty-eight million, two hundred thousand, nine hundred ninety-one.

Scientific notation

• Scientific notation: 1.8443858200991 × 10¹³

Factors of 18443858200991

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 11999907825

Divisors of 18443858200991

• Number of divisors d(n): 8
• Complete list of divisors:
  1 29 53 1537 11999907743 347997324547 635995110379 18443858200991
• Sum of all divisors σ(n): 19439850545280
• Sum of proper divisors (its aliquot sum) s(n): 995992344289
• 18443858200991 is a deficient number, because the sum of its proper divisors (995992344289) is less than itself. Its deficiency is 17447865856702

Bases of 18443858200991

• Binary: 100001100011001001011100111011100100110011111₂
• Hexadecimal: 0x10C64B9DC99F
• Base-36: 6JCZOYSNZ

Squares and roots of 18443858200991

• 18443858200991 squared (18443858200991²) is 340175905338262966953382081
• 18443858200991 cubed (18443858200991³) is 6274156161452659518989683712635715842271
• The square root of 18443858200991 is 4294631.3230580107
• The cube root of 18443858200991 is 26421.0815506509

Scales and comparisons

• 18,443,858,200,991 seconds is equal to 586,457 years, 33 weeks, 2 days, 43 minutes, 11 seconds.
• To count from 1 to 18,443,858,200,991 would take you about one million, four hundred sixty-six thousand, one hundred forty-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 18443858200991 cubic inches would be around 2201.8 feet tall.

Recreational maths with 18443858200991

• 18443858200991 backwards is 19900285834481
• The number of decimal digits it has is: 14
• The sum of 18443858200991's digits is 62
• More coming soon!