18396513861472965

Names of 18396513861472965

• Cardinal: 18396513861472965 can be written as Eighteen quadrillion, three hundred ninety-six trillion, five hundred thirteen billion, eight hundred sixty-one million, four hundred seventy-two thousand, nine hundred sixty-five.

Scientific notation

• Scientific notation: 1.8396513861472965 × 10¹⁶

Factors of 18396513861472965

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1433026221

Divisors of 18396513861472965

• Number of divisors d(n): 32
• Complete list of divisors:
  1 3 5 15 137 411 685 2055 6247 18741 31235 93705 855839 2567517 4279195 12837585 1433019829 4299059487 7165099145 21495297435 196323716573 588971149719 981618582865 2944855748595 8952074871763 26856224615289 44760374358815 134281123076445 1226434257431531 3679302772294593 6132171287157655 18396513861472965
• Sum of all divisors σ(n): 29654018157646080
• Sum of proper divisors (its aliquot sum) s(n): 11257504296173115
• 18396513861472965 is a deficient number, because the sum of its proper divisors (11257504296173115) is less than itself. Its deficiency is 7139009565299850

Bases of 18396513861472965

• Binary: 1000001010110111000100000101001110100011001001011000101₂
• Hexadecimal: 0x415B8829D192C5
• Base-36: 5150PSP7IKL

Squares and roots of 18396513861472965

• 18396513861472965 squared (18396513861472965²) is 338431722255366941677759425891225
• 18396513861472965 cubed (18396513861472965³) is 6225963869633026483732589499401944477636368232125
• The square root of 18396513861472965 is 135633748.9766944583
• The cube root of 18396513861472965 is 263984.5503923413

Scales and comparisons

• 18,396,513,861,472,965 seconds is equal to 584,952,236 years, 33 weeks, 2 days, 10 hours, 2 minutes, 45 seconds.
• To count from 1 to 18,396,513,861,472,965 would take you about one billion, seven hundred fifty-four million, eight hundred fifty-six thousand, seven hundred nine 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 18396513861472965 cubic inches would be around 21998.7 feet tall.

Recreational maths with 18396513861472965

• 18396513861472965 backwards is 56927416831569381
• The number of decimal digits it has is: 17
• The sum of 18396513861472965's digits is 84
• More coming soon!