18918281449436436

Names of 18918281449436436

• Cardinal: 18918281449436436 can be written as Eighteen quadrillion, nine hundred eighteen trillion, two hundred eighty-one billion, four hundred forty-nine million, four hundred thirty-six thousand, four hundred thirty-six.

Scientific notation

• Scientific notation: 1.8918281449436436 × 10¹⁶

Factors of 18918281449436436

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 58389757559994

Divisors of 18918281449436436

• Number of divisors d(n): 30
• Complete list of divisors:
  1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 58389757559989 116779515119978 175169272679967 233559030239956 350338545359934 525507818039901 700677090719868 1051015636079802 1576523454119703 2102031272159604 3153046908239406 4729570362359109 6306093816478812 9459140724718218 18918281449436436
• Sum of all divisors σ(n): 49456124653311530
• Sum of proper divisors (its aliquot sum) s(n): 30537843203875094
• 18918281449436436 is an abundant number, because the sum of its proper divisors (30537843203875094) is greater than itself. Its abundance is 11619561754438658

Bases of 18918281449436436

• Binary: 1000011001101100001001110100101100011011111010100010100₂
• Hexadecimal: 0x433613A58DF514
• Base-36: 569YYINFX90

Squares and roots of 18918281449436436

• 18918281449436436 squared (18918281449436436²) is 357901373000090777766142004382096
• 18918281449436436 cubed (18918281449436436³) is 6770878905555447879955853560486627416361608449856
• The square root of 18918281449436436 is 137543743.7669792235
• The cube root of 18918281449436436 is 266457.0573549421

Scales and comparisons

• 18,918,281,449,436,436 seconds is equal to 601,542,832 years, 1 day, 23 hours, 36 seconds.
• To count from 1 to 18,918,281,449,436,436 would take you about one billion, eight hundred four million, six hundred twenty-eight thousand, four hundred ninety-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 18918281449436436 cubic inches would be around 22204.8 feet tall.

Recreational maths with 18918281449436436

• 18918281449436436 backwards is 63463494418281981
• 18918281449436436 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18918281449436436's digits is 81
• More coming soon!