18001746647405

Names of 18001746647405

• Cardinal: 18001746647405 can be written as Eighteen trillion, one billion, seven hundred forty-six million, six hundred forty-seven thousand, four hundred five.

Scientific notation

• Scientific notation: 1.8001746647405 × 10¹³

Factors of 18001746647405

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 220

Divisors of 18001746647405

• Number of divisors d(n): 64
• Complete list of divisors:
  1 5 31 47 137 155 235 685 961 1457 4247 4805 6439 7285 18769 21235 29791 32195 45167 93845 131657 148955 199609 225835 581839 658285 882143 998045 1400177 2571353 2909195 4081367 4410715 6187879 7000885 12856765 18037009 20406835 27346433 30939395 79711943 90185045 120853591 136732165 191824249 398559715 559147279 604267955 847739423 959121245 2471070233 2795736395 3746461321 4238697115 12355351165 18732306605 26279922113 76603177223 116140300951 131399610565 383015886115 580701504755 3600349329481 18001746647405
• Sum of all divisors σ(n): 22964706385920
• Sum of proper divisors (its aliquot sum) s(n): 4962959738515
• 18001746647405 is a deficient number, because the sum of its proper divisors (4962959738515) is less than itself. Its deficiency is 13038786908890

Bases of 18001746647405

• Binary: 100000101111101011011101101101101100101101101₂
• Hexadecimal: 0x105F5BB6D96D
• Base-36: 6DPVZ5UNH

Squares and roots of 18001746647405

• 18001746647405 squared (18001746647405²) is 324062882357357157393234025
• 18001746647405 cubed (18001746647405³) is 5833697906024955131239831518774323955125
• The square root of 18001746647405 is 4242846.5264966867
• The cube root of 18001746647405 is 26208.2616019227

Scales and comparisons

• 18,001,746,647,405 seconds is equal to 572,399 years, 44 weeks, 5 days, 3 hours, 50 minutes, 5 seconds.
• To count from 1 to 18,001,746,647,405 would take you about one million, four hundred thirty thousand, nine hundred ninety-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 18001746647405 cubic inches would be around 2184 feet tall.

Recreational maths with 18001746647405

• 18001746647405 backwards is 50474664710081
• The number of decimal digits it has is: 14
• The sum of 18001746647405's digits is 53
• More coming soon!