18642464120489

Names of 18642464120489

• Cardinal: 18642464120489 can be written as Eighteen trillion, six hundred forty-two billion, four hundred sixty-four million, one hundred twenty thousand, four hundred eighty-nine.

Scientific notation

• Scientific notation: 1.8642464120489 × 10¹³

Factors of 18642464120489

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1459

Divisors of 18642464120489

• Number of divisors d(n): 48
• Complete list of divisors:
  1 11 19 121 209 361 1331 1429 2299 3971 6859 15719 25289 27151 43681 75449 172909 298661 480491 515869 829939 1901999 2042041 3285271 5674559 9129329 9801511 22462451 36137981 38798779 62420149 107816621 247086961 426786569 686621639 737176801 1185982831 2717956571 4694652259 8108944811 13045811141 14006359219 51641174849 89198392921 154069951409 981182322131 1694769465499 18642464120489
• Sum of all divisors σ(n): 21659484778560
• Sum of proper divisors (its aliquot sum) s(n): 3017020658071
• 18642464120489 is a deficient number, because the sum of its proper divisors (3017020658071) is less than itself. Its deficiency is 15625443462418

Bases of 18642464120489

• Binary: 100001111010010001001011100111001111010101001₂
• Hexadecimal: 0x10F489739EA9
• Base-36: 6LW89SWX5

Squares and roots of 18642464120489

• 18642464120489 squared (18642464120489²) is 347541468483719704309599121
• 18642464120489 cubed (18642464120489³) is 6479029356589803169817249920233432490169
• The square root of 18642464120489 is 4317691.9899975497
• The cube root of 18642464120489 is 26515.5784137149

Scales and comparisons

• 18,642,464,120,489 seconds is equal to 592,772 years, 36 weeks, 15 hours, 41 minutes, 29 seconds.
• To count from 1 to 18,642,464,120,489 would take you about one million, four hundred eighty-one thousand, nine hundred thirty-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 18642464120489 cubic inches would be around 2209.6 feet tall.

Recreational maths with 18642464120489

• 18642464120489 backwards is 98402146424681
• The number of decimal digits it has is: 14
• The sum of 18642464120489's digits is 59
• More coming soon!