138247

Names of 138247

• Cardinal: 138247 can be written as One hundred thirty-eight thousand, two hundred forty-seven.

Scientific notation

• Scientific notation: 1.38247 × 10⁵

Factors of 138247

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 138247

Divisors of 138247

• Number of divisors d(n): 2
• Complete list of divisors:
  1 138247
• Sum of all divisors σ(n): 138248
• Sum of proper divisors (its aliquot sum) s(n): 1
• 138247 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 138246

Bases of 138247

• Binary: 100001110000000111₂
• Hexadecimal: 0x21C07
• Base-36: 2YO7

Squares and roots of 138247

• 138247 squared (138247²) is 19112233009
• 138247 cubed (138247³) is 2642208876795223
• The square root of 138247 is 371.8158146179
• The cube root of 138247 is 51.7073052915

Scales and comparisons

• 138,247 seconds is equal to 1 day, 14 hours, 24 minutes, 7 seconds.
• To count from 1 to 138,247 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 138247 cubic inches would be around 4.3 feet tall.

Recreational maths with 138247

• 138247 backwards is 742831
• The number of decimal digits it has is: 6
• The sum of 138247's digits is 25
• More coming soon!