18009591616

Names of 18009591616

• Cardinal: 18009591616 can be written as Eighteen billion, nine million, five hundred ninety-one thousand, six hundred sixteen.

Scientific notation

• Scientific notation: 1.8009591616 × 10¹⁰

Factors of 18009591616

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 399

Divisors of 18009591616

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 4 8 16 32 43 64 86 127 172 227 254 344 454 508 688 908 1016 1376 1816 2032 2752 3632 4064 5461 7264 8128 9761 10922 14528 19522 21844 28829 39044 43688 51529 57658 78088 87376 103058 115316 156176 174752 206116 230632 312352 349504 412232 461264 624704 824464 922528 1239647 1648928 1845056 2215747 2479294 3297856 4431494 4958588 6544183 8862988 9917176 13088366 17725976 19834352 26176732 35451952 39668704 52353464 70903904 79337408 104706928 141807808 209413856 281399869 418827712 562799738 1125599476 2251198952 4502397904 9004795808 18009591616
• Sum of all divisors σ(n): 37019918848
• Sum of proper divisors (its aliquot sum) s(n): 19010327232
• 18009591616 is an abundant number, because the sum of its proper divisors (19010327232) is greater than itself. Its abundance is 1000735616

Bases of 18009591616

• Binary: 10000110001011101001000111101000000₂
• Hexadecimal: 0x431748F40
• Base-36: 89UG1TS

Squares and roots of 18009591616

• 18009591616 squared (18009591616²) is 324345390175097491456
• 18009591616 cubed (18009591616³) is 5841328019585684554108609232896
• The square root of 18009591616 is 134199.8197316223
• The cube root of 18009591616 is 2621.2068142365

Scales and comparisons

• 18,009,591,616 seconds is equal to 572 years, 33 weeks, 5 days, 8 hours, 20 minutes, 16 seconds.
• To count from 1 to 18,009,591,616 would take you about one thousand, one hundred forty-five 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 18009591616 cubic inches would be around 218.4 feet tall.

Recreational maths with 18009591616

• 18009591616 backwards is 61619590081
• The number of decimal digits it has is: 11
• The sum of 18009591616's digits is 46
• More coming soon!