138399626

Names of 138399626

• Cardinal: 138399626 can be written as One hundred thirty-eight million, three hundred ninety-nine thousand, six hundred twenty-six.

Scientific notation

• Scientific notation: 1.38399626 × 10⁸

Factors of 138399626

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 876028

Divisors of 138399626

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 79 158 875947 1751894 69199813 138399626
• Sum of all divisors σ(n): 210227520
• Sum of proper divisors (its aliquot sum) s(n): 71827894
• 138399626 is a deficient number, because the sum of its proper divisors (71827894) is less than itself. Its deficiency is 66571732

Bases of 138399626

• Binary: 1000001111111100111110001010₂
• Hexadecimal: 0x83FCF8A
• Base-36: 2AEDU2

Squares and roots of 138399626

• 138399626 squared (138399626²) is 19154456476939876
• 138399626 cubed (138399626³) is 2650969612641756462886376
• The square root of 138399626 is 11764.3370403945
• The cube root of 138399626 is 517.2632674525

Scales and comparisons

• 138,399,626 seconds is equal to 4 years, 20 weeks, 5 days, 20 hours, 20 minutes, 26 seconds.
• To count from 1 to 138,399,626 would take you about 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 138399626 cubic inches would be around 43.1 feet tall.

Recreational maths with 138399626

• 138399626 backwards is 626993831
• The number of decimal digits it has is: 9
• The sum of 138399626's digits is 47
• More coming soon!