138034909

Names of 138034909

• Cardinal: 138034909 can be written as One hundred thirty-eight million, thirty-four thousand, nine hundred nine.

Scientific notation

• Scientific notation: 1.38034909 × 10⁸

Factors of 138034909

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 4452770

Divisors of 138034909

• Number of divisors d(n): 4
• Complete list of divisors:
  1 31 4452739 138034909
• Sum of all divisors σ(n): 142487680
• Sum of proper divisors (its aliquot sum) s(n): 4452771
• 138034909 is a deficient number, because the sum of its proper divisors (4452771) is less than itself. Its deficiency is 133582138

Bases of 138034909

• Binary: 1000001110100011111011011101₂
• Hexadecimal: 0x83A3EDD
• Base-36: 2A6KF1

Squares and roots of 138034909

• 138034909 squared (138034909²) is 19053636102638281
• 138034909 cubed (138034909³) is 2630066925546789777751429
• The square root of 138034909 is 11748.8258562293
• The cube root of 138034909 is 516.8084958303

Scales and comparisons

• 138,034,909 seconds is equal to 4 years, 20 weeks, 1 day, 15 hours, 1 minute, 49 seconds.
• To count from 1 to 138,034,909 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 138034909 cubic inches would be around 43.1 feet tall.

Recreational maths with 138034909

• 138034909 backwards is 909430831
• The number of decimal digits it has is: 9
• The sum of 138034909's digits is 37
• More coming soon!