138842743450799325185

Names of 138842743450799325185

• Cardinal: 138842743450799325185 can be written as One hundred thirty-eight quintillion, eight hundred forty-two quadrillion, seven hundred forty-three trillion, four hundred fifty billion, seven hundred ninety-nine million, three hundred twenty-five thousand, one hundred eighty-five.

Scientific notation

• Scientific notation: 1.38842743450799325185 × 10²⁰

Factors of 138842743450799325185

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 114276958483

Divisors of 138842743450799325185

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 243512317 1217561585 114033446161 570167230805 27768548690159865037 138842743450799325185
• Sum of all divisors σ(n): 166611292826620941096
• Sum of proper divisors (its aliquot sum) s(n): 27768549375821615911
• 138842743450799325185 is a deficient number, because the sum of its proper divisors (27768549375821615911) is less than itself. Its deficiency is 111074194074977709274

Bases of 138842743450799325185

• Binary: 1111000011011010100100000111000110001010001100101100100000000000001₂
• Hexadecimal: 0x786D4838C51964001
• Base-36: TAV18WOB6DY4H

Squares and roots of 138842743450799325185

• 138842743450799325185 squared (138842743450799325185²) is 19277307408944478905688796497251375284225
• 138842743450799325185 cubed (138842743450799325185³) is 2676514247002271357307442733863149623559915314616817575706625
• The square root of 138842743450799325185 is 11783155072.0000000011
• The cube root of 138842743450799325185 is 5178147.2413049349

Scales and comparisons

• 138,842,743,450,799,325,185 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,842,743,450,799,325,185 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 138842743450799325185 cubic inches would be around 431512.3 feet tall.

Recreational maths with 138842743450799325185

• 138842743450799325185 backwards is 581523997054347248831
• The number of decimal digits it has is: 21
• The sum of 138842743450799325185's digits is 98
• More coming soon!