388536849372672081

Names of 388536849372672081

• Cardinal: 388536849372672081 can be written as Three hundred eighty-eight quadrillion, five hundred thirty-six trillion, eight hundred forty-nine billion, three hundred seventy-two million, six hundred seventy-two thousand and eighty-one.

Scientific notation

• Scientific notation: 3.88536849372672081 × 10¹⁷

Factors of 388536849372672081

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 133831

Divisors of 388536849372672081

• Number of divisors d(n): 18
• Complete list of divisors:
  1 3 9 1571 4713 14139 132257 396771 1190313 207775747 623327241 1869981723 17491914049 52475742147 157427226441 27479796970979 82439390912937 247318172738811
• Sum of all divisors σ(n): 388646998658263122
• Sum of proper divisors (its aliquot sum) s(n): 110149285591041
• 388536849372672081 is a deficient number, because the sum of its proper divisors (110149285591041) is less than itself. Its deficiency is 388426700087081040

Bases of 388536849372672081

• Binary: 10101100100010111000011010010111001000000011111000001010001₂
• Hexadecimal: 0x5645C34B901F051
• Base-36: 2Y9OTGI0BGI9

Squares and roots of 388536849372672081

• 388536849372672081 squared (388536849372672081²) is 150960883320442473262910017956870561
• 388536849372672081 cubed (388536849372672081³) is 58653865983840282383965293299171442179536609215507441
• 388536849372672081 is a perfect square number. Its square root is 623327241
• The cube root of 388536849372672081 is 729699.5381825869

Scales and comparisons

• 388,536,849,372,672,081 seconds is equal to 12,354,269,986 years, 34 weeks, 4 days, 16 hours, 1 minute, 21 seconds.
• To count from 1 to 388,536,849,372,672,081 would take you about thirty-seven billion, sixty-two million, eight hundred nine thousand, nine hundred sixty 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 388536849372672081 cubic inches would be around 60808.3 feet tall.

Recreational maths with 388536849372672081

• 388536849372672081 backwards is 180276273948635883
• The number of decimal digits it has is: 18
• The sum of 388536849372672081's digits is 90
• More coming soon!