138403549

Names of 138403549

• Cardinal: 138403549 can be written as One hundred thirty-eight million, four hundred three thousand, five hundred forty-nine.

Scientific notation

• Scientific notation: 1.38403549 × 10⁸

Factors of 138403549

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 138403549

Divisors of 138403549

• Number of divisors d(n): 2
• Complete list of divisors:
  1 138403549
• Sum of all divisors σ(n): 138403550
• Sum of proper divisors (its aliquot sum) s(n): 1
• 138403549 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 138403548

Bases of 138403549

• Binary: 1000001111111101111011011101₂
• Hexadecimal: 0x83FDEDD
• Base-36: 2AEGV1

Squares and roots of 138403549

• 138403549 squared (138403549²) is 19155542375795401
• 138403549 cubed (138403549³) is 2651195047829975196278149
• The square root of 138403549 is 11764.5037719405
• The cube root of 138403549 is 517.2681547601

Scales and comparisons

• 138,403,549 seconds is equal to 4 years, 20 weeks, 5 days, 21 hours, 25 minutes, 49 seconds.
• To count from 1 to 138,403,549 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 138403549 cubic inches would be around 43.1 feet tall.

Recreational maths with 138403549

• 138403549 backwards is 945304831
• The number of decimal digits it has is: 9
• The sum of 138403549's digits is 37
• More coming soon!