138491315919571777

Names of 138491315919571777

• Cardinal: 138491315919571777 can be written as One hundred thirty-eight quadrillion, four hundred ninety-one trillion, three hundred fifteen billion, nine hundred nineteen million, five hundred seventy-one thousand, seven hundred seventy-seven.

Scientific notation

• Scientific notation: 1.38491315919571777 × 10¹⁷

Factors of 138491315919571777

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 183598823

Divisors of 138491315919571777

• Number of divisors d(n): 8
• Complete list of divisors:
  1 19 58063463 125535341 1103205797 2385171479 7289016627345883 138491315919571777
• Sum of all divisors σ(n): 145780336218893760
• Sum of proper divisors (its aliquot sum) s(n): 7289020299321983
• 138491315919571777 is a deficient number, because the sum of its proper divisors (7289020299321983) is less than itself. Its deficiency is 131202295620249794

Bases of 138491315919571777

• Binary: 111101100000001010001111000111001110111001100101101000001₂
• Hexadecimal: 0x1EC051E39DCCB41
• Base-36: 11VN2O7YP6IP

Squares and roots of 138491315919571777

• 138491315919571777 squared (138491315919571777²) is 19179844585134635112845763054937729
• 138491315919571777 cubed (138491315919571777³) is 2656241915728168836559267312622917191673671080874433
• The square root of 138491315919571777 is 372144213.8735624317
• The cube root of 138491315919571777 is 517377.4714161633

Scales and comparisons

• 138,491,315,919,571,777 seconds is equal to 4,403,595,464 years, 24 weeks, 5 days, 2 hours, 49 minutes, 37 seconds.
• To count from 1 to 138,491,315,919,571,777 would take you about thirteen billion, two hundred ten million, seven hundred eighty-six thousand, three hundred ninety-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 138491315919571777 cubic inches would be around 43114.8 feet tall.

Recreational maths with 138491315919571777

• 138491315919571777 backwards is 777175919513194831
• The number of decimal digits it has is: 18
• The sum of 138491315919571777's digits is 88
• More coming soon!