18168789364531

Names of 18168789364531

• Cardinal: 18168789364531 can be written as Eighteen trillion, one hundred sixty-eight billion, seven hundred eighty-nine million, three hundred sixty-four thousand, five hundred thirty-one.

Scientific notation

• Scientific notation: 1.8168789364531 × 10¹³

Factors of 18168789364531

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1276

Divisors of 18168789364531

• Number of divisors d(n): 48
• Complete list of divisors:
  1 13 31 109 403 961 1123 1417 3379 11881 12493 14599 34813 43927 104749 122407 154453 368311 452569 1079203 1295029 1361737 1591291 3794617 4788043 11417641 13342363 14029639 16835377 40145899 49330021 117633127 148429333 173450719 413613253 521896687 1244522869 1454317567 1529230651 5376972289 12822010843 16178797297 18906128371 45083844577 166686140959 586089979501 1397599181887 18168789364531
• Sum of all divisors σ(n): 20423295852960
• Sum of proper divisors (its aliquot sum) s(n): 2254506488429
• 18168789364531 is a deficient number, because the sum of its proper divisors (2254506488429) is less than itself. Its deficiency is 15914282876102

Bases of 18168789364531

• Binary: 100001000011001000000001111000110111100110011₂
• Hexadecimal: 0x1086403C6F33
• Base-36: 6FUMK3037

Squares and roots of 18168789364531

• 18168789364531 squared (18168789364531²) is 330104906972694778800849961
• 18168789364531 cubed (18168789364531³) is 5997606522984992041097716373119866133291
• The square root of 18168789364531 is 4262486.2890724939
• The cube root of 18168789364531 is 26289.0764895851

Scales and comparisons

• 18,168,789,364,531 seconds is equal to 577,711 years, 15 weeks, 4 days, 22 hours, 35 minutes, 31 seconds.
• To count from 1 to 18,168,789,364,531 would take you about one million, four hundred forty-four thousand, two hundred seventy-eight 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 18168789364531 cubic inches would be around 2190.8 feet tall.

Recreational maths with 18168789364531

• 18168789364531 backwards is 13546398786181
• The number of decimal digits it has is: 14
• The sum of 18168789364531's digits is 70
• More coming soon!