138239

Names of 138239

• Cardinal: 138239 can be written as One hundred thirty-eight thousand, two hundred thirty-nine.

Scientific notation

• Scientific notation: 1.38239 × 10⁵

Factors of 138239

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 138239

Divisors of 138239

• Number of divisors d(n): 2
• Complete list of divisors:
  1 138239
• Sum of all divisors σ(n): 138240
• Sum of proper divisors (its aliquot sum) s(n): 1
• 138239 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 138238

Bases of 138239

• Binary: 100001101111111111₂
• Hexadecimal: 0x21BFF
• Base-36: 2YNZ

Squares and roots of 138239

• 138239 squared (138239²) is 19110021121
• 138239 cubed (138239³) is 2641750209745919
• The square root of 138239 is 371.8050564477
• The cube root of 138239 is 51.7063078825

Scales and comparisons

• 138,239 seconds is equal to 1 day, 14 hours, 23 minutes, 59 seconds.
• To count from 1 to 138,239 would take you about fourteen hours.

  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 138239 cubic inches would be around 4.3 feet tall.

Recreational maths with 138239

• 138239 backwards is 932831
• 138239 is a twin prime! Its twin is 138241
• The number of decimal digits it has is: 6
• The sum of 138239's digits is 26
• More coming soon!