18264439908

Names of 18264439908

• Cardinal: 18264439908 can be written as Eighteen billion, two hundred sixty-four million, four hundred thirty-nine thousand, nine hundred eight.

Scientific notation

• Scientific notation: 1.8264439908 × 10¹⁰

Factors of 18264439908

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3547900

Divisors of 18264439908

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 9 11 12 13 18 22 26 33 36 39 44 52 66 78 99 117 132 143 156 198 234 286 396 429 468 572 858 1287 1716 2574 5148 3547871 7095742 10643613 14191484 21287226 31930839 39026581 42574452 46122323 63861678 78053162 92244646 117079743 127723356 138366969 156106324 184489292 234159486 276733938 351239229 415100907 468318972 507345553 553467876 702478458 830201814 1014691106 1404956916 1522036659 1660403628 2029382212 3044073318 4566109977 6088146636 9132219954 18264439908
• Sum of all divisors σ(n): 54239867136
• Sum of proper divisors (its aliquot sum) s(n): 35975427228
• 18264439908 is an abundant number, because the sum of its proper divisors (35975427228) is greater than itself. Its abundance is 17710987320

Bases of 18264439908

• Binary: 10001000000101001010011110001100100₂
• Hexadecimal: 0x440A53C64
• Base-36: 8E26C10

Squares and roots of 18264439908

• 18264439908 squared (18264439908²) is 333589765152943048464
• 18264439908 cubed (18264439908³) is 6092830219559760738017059701312
• The square root of 18264439908 is 135145.9947908187
• The cube root of 18264439908 is 2633.5129175113

Scales and comparisons

• 18,264,439,908 seconds is equal to 580 years, 39 weeks, 23 hours, 31 minutes, 48 seconds.
• To count from 1 to 18,264,439,908 would take you about one thousand, one hundred sixty-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 18264439908 cubic inches would be around 219.5 feet tall.

Recreational maths with 18264439908

• 18264439908 backwards is 80993446281
• The number of decimal digits it has is: 11
• The sum of 18264439908's digits is 54
• More coming soon!