138838943412542

Names of 138838943412542

• Cardinal: 138838943412542 can be written as One hundred thirty-eight trillion, eight hundred thirty-eight billion, nine hundred forty-three million, four hundred twelve thousand, five hundred forty-two.

Scientific notation

• Scientific notation: 1.38838943412542 × 10¹⁴

Factors of 138838943412542

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1740752

Divisors of 138838943412542

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 17 34 1523 1543 3046 3086 25891 26231 51782 52462 1737667 2349989 3475334 4699978 29540339 39949813 59080678 79899626 2646466841 2681220181 5292933682 5362440362 44989936297 45580743077 89979872594 91161486154 4083498335663 8166996671326 69419471706271 138838943412542
• Sum of all divisors σ(n): 220796826124032
• Sum of proper divisors (its aliquot sum) s(n): 81957882711490
• 138838943412542 is a deficient number, because the sum of its proper divisors (81957882711490) is less than itself. Its deficiency is 56881060701052

Bases of 138838943412542

• Binary: 11111100100010111110101111001110011000100111110₂
• Hexadecimal: 0x7E45F5E7313E
• Base-36: 1D7PQA6XJ2

Squares and roots of 138838943412542

• 138838943412542 squared (138838943412542²) is 19276252207911039616402901764
• 138838943412542 cubed (138838943412542³) is 2676294489500048616728540448476681351524088
• The square root of 138838943412542 is 11782993.8221379883
• The cube root of 138838943412542 is 51781.0000000011

Scales and comparisons

• 138,838,943,412,542 seconds is equal to 4,414,648 years, 49 weeks, 10 hours, 9 minutes, 2 seconds.
• To count from 1 to 138,838,943,412,542 would take you about eleven million, thirty-six thousand, six hundred twenty-two 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 138838943412542 cubic inches would be around 4315.1 feet tall.

Recreational maths with 138838943412542

• 138838943412542 backwards is 245214349838831
• The number of decimal digits it has is: 15
• The sum of 138838943412542's digits is 65
• More coming soon!