18388124213839309

Names of 18388124213839309

• Cardinal: 18388124213839309 can be written as Eighteen quadrillion, three hundred eighty-eight trillion, one hundred twenty-four billion, two hundred thirteen million, eight hundred thirty-nine thousand, three hundred nine.

Scientific notation

• Scientific notation: 1.8388124213839309 × 10¹⁶

Factors of 18388124213839309

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 478978990

Divisors of 18388124213839309

• Number of divisors d(n): 4
• Complete list of divisors:
  1 42088649 436890341 18388124213839309
• Sum of all divisors σ(n): 18388124692818300
• Sum of proper divisors (its aliquot sum) s(n): 478978991
• 18388124213839309 is a deficient number, because the sum of its proper divisors (478978991) is less than itself. Its deficiency is 18388123734860318

Bases of 18388124213839309

• Binary: 1000001010100111110011011001011110110100000010111001101₂
• Hexadecimal: 0x4153E6CBDA05CD
• Base-36: 5121NN9ME31

Squares and roots of 18388124213839309

• 18388124213839309 squared (18388124213839309²) is 338123112103583505659882073597481
• 18388124213839309 cubed (18388124213839309³) is 6217449784930606995588446668794378355216481180629
• The square root of 18388124213839309 is 135602817.8683588751
• The cube root of 18388124213839309 is 263944.4146337549

Scales and comparisons

• 18,388,124,213,839,309 seconds is equal to 584,685,471 years, 41 weeks, 3 days, 6 hours, 1 minute, 49 seconds.
• To count from 1 to 18,388,124,213,839,309 would take you about one billion, seven hundred fifty-four million, fifty-six thousand, four hundred fifteen 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 18388124213839309 cubic inches would be around 21995.4 feet tall.

Recreational maths with 18388124213839309

• 18388124213839309 backwards is 90393831242188381
• The number of decimal digits it has is: 17
• The sum of 18388124213839309's digits is 73
• More coming soon!