18738483877642464

Names of 18738483877642464

• Cardinal: 18738483877642464 can be written as Eighteen quadrillion, seven hundred thirty-eight trillion, four hundred eighty-three billion, eight hundred seventy-seven million, six hundred forty-two thousand, four hundred sixty-four.

Scientific notation

• Scientific notation: 1.8738483877642464 × 10¹⁶

Factors of 18738483877642464

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 5004936933149

Divisors of 18738483877642464

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 72 78 96 104 117 144 156 208 234 288 312 416 468 624 936 1248 1872 3744 5004936933131 10009873866262 15014810799393 20019747732524 30029621598786 40039495465048 45044432398179 60059243197572 65064180130703 80078990930096 90088864796358 120118486395144 130128360261406 160157981860192 180177729592716 195192540392109 240236972790288 260256720522812 360355459185432 390385080784218 480473945580576 520513441045624 585577621176327 720710918370864 780770161568436 1041026882091248 1171155242352654 1441421836741728 1561540323136872 2082053764182496 2342310484705308 3123080646273744 4684620969410616 6246161292547488 9369241938821232 18738483877642464
• Sum of all divisors σ(n): 57386606875291512
• Sum of proper divisors (its aliquot sum) s(n): 38648122997649048
• 18738483877642464 is an abundant number, because the sum of its proper divisors (38648122997649048) is greater than itself. Its abundance is 19909639120006584

Bases of 18738483877642464

• Binary: 1000010100100101000110101000011001010000000000011100000₂
• Hexadecimal: 0x42928D432800E0
• Base-36: 54I8KNJFJS0

Squares and roots of 18738483877642464

• 18738483877642464 squared (18738483877642464²) is 351130778032666553740518615991296
• 18738483877642464 cubed (18738483877642464³) is 6579658423109176880761841212153603020438823993344
• The square root of 18738483877642464 is 136888581.9841905733
• The cube root of 18738483877642464 is 265610.2413516489

Scales and comparisons

• 18,738,483,877,642,464 seconds is equal to 595,825,825 years, 19 weeks, 2 days, 16 hours, 14 minutes, 24 seconds.
• To count from 1 to 18,738,483,877,642,464 would take you about one billion, seven hundred eighty-seven million, four hundred seventy-seven thousand, four hundred seventy-six 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 18738483877642464 cubic inches would be around 22134.2 feet tall.

Recreational maths with 18738483877642464

• 18738483877642464 backwards is 46424677838483781
• The number of decimal digits it has is: 17
• The sum of 18738483877642464's digits is 90
• More coming soon!