18228637908

Names of 18228637908

• Cardinal: 18228637908 can be written as Eighteen billion, two hundred twenty-eight million, six hundred thirty-seven thousand, nine hundred eight.

Scientific notation

• Scientific notation: 1.8228637908 × 10¹⁰

Factors of 18228637908

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 97

Divisors of 18228637908

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 3 4 6 9 12 13 18 26 36 39 52 78 79 117 156 158 234 237 316 468 474 711 948 1027 1422 2054 2844 3081 4108 6162 6241 9243 12324 12482 18486 18723 24964 36972 37446 56169 74892 81133 112338 162266 224676 243399 324532 486798 493039 730197 973596 986078 1460394 1479117 1972156 2920788 2958234 4437351 5916468 6409507 8874702 12819014 17749404 19228521 25638028 38457042 38950081 57685563 76914084 77900162 115371126 116850243 155800324 230742252 233700486 350550729 467400972 506351053 701101458 1012702106 1402202916 1519053159 2025404212 3038106318 4557159477 6076212636 9114318954 18228637908
• Sum of all divisors σ(n): 50258587834
• Sum of proper divisors (its aliquot sum) s(n): 32029949926
• 18228637908 is an abundant number, because the sum of its proper divisors (32029949926) is greater than itself. Its abundance is 13801312018

Bases of 18228637908

• Binary: 10000111110100000101111000011010100₂
• Hexadecimal: 0x43E82F0D4
• Base-36: 8DGUZ10

Squares and roots of 18228637908

• 18228637908 squared (18228637908²) is 332283239980974616464
• 18228637908 cubed (18228637908³) is 6057070864510255092461431317312
• The square root of 18228637908 is 135013.4730610245
• The cube root of 18228637908 is 2631.7910524545

Scales and comparisons

• 18,228,637,908 seconds is equal to 579 years, 31 weeks, 6 days, 14 hours, 31 minutes, 48 seconds.
• To count from 1 to 18,228,637,908 would take you about one thousand, one hundred fifty-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 18228637908 cubic inches would be around 219.3 feet tall.

Recreational maths with 18228637908

• 18228637908 backwards is 80973682281
• The number of decimal digits it has is: 11
• The sum of 18228637908's digits is 54
• More coming soon!