138133993916871031915

Names of 138133993916871031915

• Cardinal: 138133993916871031915 can be written as One hundred thirty-eight quintillion, one hundred thirty-three quadrillion, nine hundred ninety-three trillion, nine hundred sixteen billion, eight hundred seventy-one million, thirty-one thousand, nine hundred fifteen.

Scientific notation

• Scientific notation: 1.38133993916871031915 × 10²⁰

Factors of 138133993916871031915

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 4178913747296670

Divisors of 138133993916871031915

• Number of divisors d(n): 16
• Complete list of divisors:
  1 5 11 55 601 3005 6611 33055 4178913747296053 20894568736480265 45968051220256583 229840256101282915 2511527162124927853 12557635810624639265 27626798783374206383 138133993916871031915
• Sum of all divisors σ(n): 181130837462800164576
• Sum of proper divisors (its aliquot sum) s(n): 42996843545929132661
• 138133993916871031915 is a deficient number, because the sum of its proper divisors (42996843545929132661) is less than itself. Its deficiency is 95137150370941899254

Bases of 138133993916871031915

• Binary: 1110111110011111110100001111001101000100101000100010011110001101011₂
• Hexadecimal: 0x77CFE879A25113C6B
• Base-36: T5H6M5ZBC5WMJ

Squares and roots of 138133993916871031915

• 138133993916871031915 squared (138133993916871031915²) is 19081000275426163249551262354876948567225
• 138133993916871031915 cubed (138133993916871031915³) is 2635734775973532118830756842275051505253338945102966497985875
• The square root of 138133993916871031915 is 11753041900.5834839197
• The cube root of 138133993916871031915 is 5169321.2561663259

Scales and comparisons

• 138,133,993,916,871,031,915 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,133,993,916,871,031,915 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 138133993916871031915 cubic inches would be around 430776.8 feet tall.

Recreational maths with 138133993916871031915

• 138133993916871031915 backwards is 519130178619399331831
• The number of decimal digits it has is: 21
• The sum of 138133993916871031915's digits is 91
• More coming soon!