18155238740464

Names of 18155238740464

• Cardinal: 18155238740464 can be written as Eighteen trillion, one hundred fifty-five billion, two hundred thirty-eight million, seven hundred forty thousand, four hundred sixty-four.

Scientific notation

• Scientific notation: 1.8155238740464 × 10¹³

Factors of 18155238740464

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 24610081

Divisors of 18155238740464

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 4 7 8 14 16 28 49 56 98 112 196 392 784 941 1882 3764 6587 7528 13174 15056 26348 46109 52696 92218 105392 184436 368872 737744 24609131 49218262 98436524 172263917 196873048 344527834 393746096 689055668 1205847419 1378111336 2411694838 2756222672 4823389676 9646779352 19293558704 23157192271 46314384542 92628769084 162100345897 185257538168 324200691794 370515076336 648401383588 1134702421279 1296802767176 2269404842558 2593605534352 4538809685116 9077619370232 18155238740464
• Sum of all divisors σ(n): 40962244741848
• Sum of proper divisors (its aliquot sum) s(n): 22807006001384
• 18155238740464 is an abundant number, because the sum of its proper divisors (22807006001384) is greater than itself. Its abundance is 4651767260920

Bases of 18155238740464

• Binary: 100001000001100011000100011100101000111110000₂
• Hexadecimal: 0x1083188E51F0
• Base-36: 6FOEGE3N4

Squares and roots of 18155238740464

• 18155238740464 squared (18155238740464²) is 329612693723244849150935296
• 18155238740464 cubed (18155238740464³) is 5984197146432950013698102203178601017344
• The square root of 18155238740464 is 4260896.4714557429
• The cube root of 18155238740464 is 26282.5392352495

Scales and comparisons

• 18,155,238,740,464 seconds is equal to 577,280 years, 22 weeks, 4 days, 21 minutes, 4 seconds.
• To count from 1 to 18,155,238,740,464 would take you about one million, four hundred forty-three thousand, two hundred one 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 18155238740464 cubic inches would be around 2190.2 feet tall.

Recreational maths with 18155238740464

• 18155238740464 backwards is 46404783255181
• The number of decimal digits it has is: 14
• The sum of 18155238740464's digits is 58
• More coming soon!