18135141918

Names of 18135141918

• Cardinal: 18135141918 can be written as Eighteen billion, one hundred thirty-five million, one hundred forty-one thousand, nine hundred eighteen.

Scientific notation

• Scientific notation: 1.8135141918 × 10¹⁰

Factors of 18135141918

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 232

Divisors of 18135141918

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 17 31 34 51 62 93 102 179 186 358 527 537 1054 1074 1581 3043 3162 5549 6086 9129 11098 16647 18258 32041 33294 64082 94333 96123 188666 192246 282999 544697 565998 993271 1089394 1634091 1986542 2979813 3268182 5735339 5959626 11470678 16885607 17206017 33771214 34412034 50656821 97500763 101313642 177795509 195001526 292502289 355591018 533386527 585004578 1066773054 3022523653 6045047306 9067570959 18135141918
• Sum of all divisors σ(n): 39865374720
• Sum of proper divisors (its aliquot sum) s(n): 21730232802
• 18135141918 is an abundant number, because the sum of its proper divisors (21730232802) is greater than itself. Its abundance is 3595090884

Bases of 18135141918

• Binary: 10000111000111100000100111000011110₂
• Hexadecimal: 0x438F04E1E
• Base-36: 8BX7126

Squares and roots of 18135141918

• 18135141918 squared (18135141918²) is 328883372386000718724
• 18135141918 cubed (18135141918³) is 5964346632690565310509739872632
• The square root of 18135141918 is 134666.7810486311
• The cube root of 18135141918 is 2627.2837893275

Scales and comparisons

• 18,135,141,918 seconds is equal to 576 years, 33 weeks, 2 days, 11 hours, 25 minutes, 18 seconds.
• To count from 1 to 18,135,141,918 would take you about one thousand, one hundred fifty-three 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 18135141918 cubic inches would be around 218.9 feet tall.

Recreational maths with 18135141918

• 18135141918 backwards is 81914153181
• The number of decimal digits it has is: 11
• The sum of 18135141918's digits is 42
• More coming soon!