18045438981705

Names of 18045438981705

• Cardinal: 18045438981705 can be written as Eighteen trillion, forty-five billion, four hundred thirty-eight million, nine hundred eighty-one thousand, seven hundred five.

Scientific notation

• Scientific notation: 1.8045438981705 × 10¹³

Factors of 18045438981705

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 755197346

Divisors of 18045438981705

• Number of divisors d(n): 40
• Complete list of divisors:
  1 3 5 9 15 27 45 59 81 135 177 295 405 531 885 1593 2655 4779 7965 23895 755197279 2265591837 3775986395 6796775511 11327959185 20390326533 33983877555 44556639461 61170979599 101951632665 133669918383 222783197305 305854897995 401009755149 668349591915 1203029265447 2005048775745 3609087796341 6015146327235 18045438981705
• Sum of all divisors σ(n): 32896393516800
• Sum of proper divisors (its aliquot sum) s(n): 14850954535095
• 18045438981705 is a deficient number, because the sum of its proper divisors (14850954535095) is less than itself. Its deficiency is 3194484446610

Bases of 18045438981705

• Binary: 100000110100110000111111110101111011001001001₂
• Hexadecimal: 0x106987FAF649
• Base-36: 6E9YKG7K9

Squares and roots of 18045438981705

• 18045438981705 squared (18045438981705²) is 325637868042438387324707025
• 18045438981705 cubed (18045438981705³) is 5876278277892326533889963516403459977625
• The square root of 18045438981705 is 4247992.3471806067
• The cube root of 18045438981705 is 26229.4479709735

Scales and comparisons

• 18,045,438,981,705 seconds is equal to 573,789 years, 7 weeks, 2 days, 11 hours, 21 minutes, 45 seconds.
• To count from 1 to 18,045,438,981,705 would take you about one million, four hundred thirty-four thousand, four hundred seventy-two 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 18045438981705 cubic inches would be around 2185.8 feet tall.

Recreational maths with 18045438981705

• 18045438981705 backwards is 50718983454081
• The number of decimal digits it has is: 14
• The sum of 18045438981705's digits is 63
• More coming soon!