138678425874910395

Names of 138678425874910395

• Cardinal: 138678425874910395 can be written as One hundred thirty-eight quadrillion, six hundred seventy-eight trillion, four hundred twenty-five billion, eight hundred seventy-four million, nine hundred ten thousand, three hundred ninety-five.

Scientific notation

• Scientific notation: 1.38678425874910395 × 10¹⁷

Factors of 138678425874910395

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 300617569

Divisors of 138678425874910395

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 5 9 15 45 821 2463 4105 7389 12315 12487 36945 37461 62435 112383 187305 561915 10251827 30755481 51259135 92266443 153777405 300604253 461332215 901812759 1503021265 2705438277 4509063795 13527191385 246796091713 740388275139 1233980458565 2221164825417 3701941375695 3753645307211 11105824127085 11260935921633 18768226536055 33782807764899 56304679608165 168914038824495 3081742797220231 9245228391660693 15408713986101155 27735685174982079 46226141958303465 138678425874910395
• Sum of all divisors σ(n): 240687996860106432
• Sum of proper divisors (its aliquot sum) s(n): 102009570985196037
• 138678425874910395 is a deficient number, because the sum of its proper divisors (102009570985196037) is less than itself. Its deficiency is 36668854889714358

Bases of 138678425874910395

• Binary: 111101100101011110100101100101000010010001100110010111011₂
• Hexadecimal: 0x1ECAF4B2848CCBB
• Base-36: 11XHEDCJ2LKR

Squares and roots of 138678425874910395

• 138678425874910395 squared (138678425874910395²) is 19231705803143016954923949279056025
• 138678425874910395 cubed (138678425874910395³) is 2667022687669252961808798486323584692459497059879875
• The square root of 138678425874910395 is 372395523.4356481829
• The cube root of 138678425874910395 is 517610.3690784485

Scales and comparisons

• 138,678,425,874,910,395 seconds is equal to 4,409,544,982 years, 14 weeks, 6 days, 4 hours, 53 minutes, 15 seconds.
• To count from 1 to 138,678,425,874,910,395 would take you about thirteen billion, two hundred twenty-eight million, six hundred thirty-four thousand, nine hundred forty-six 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 138678425874910395 cubic inches would be around 43134.2 feet tall.

Recreational maths with 138678425874910395

• 138678425874910395 backwards is 593019478524876831
• The number of decimal digits it has is: 18
• The sum of 138678425874910395's digits is 90
• More coming soon!