138647

Names of 138647

• Cardinal: 138647 can be written as One hundred thirty-eight thousand, six hundred forty-seven.

Scientific notation

• Scientific notation: 1.38647 × 10⁵

Factors of 138647

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 138647

Divisors of 138647

• Number of divisors d(n): 2
• Complete list of divisors:
  1 138647
• Sum of all divisors σ(n): 138648
• Sum of proper divisors (its aliquot sum) s(n): 1
• 138647 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 138646

Bases of 138647

• Binary: 100001110110010111₂
• Hexadecimal: 0x21D97
• Base-36: 2YZB

Squares and roots of 138647

• 138647 squared (138647²) is 19222990609
• 138647 cubed (138647³) is 2665209978966023
• The square root of 138647 is 372.3533268281
• The cube root of 138647 is 51.7571267615

Scales and comparisons

• 138,647 seconds is equal to 1 day, 14 hours, 30 minutes, 47 seconds.
• To count from 1 to 138,647 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 138647 cubic inches would be around 4.3 feet tall.

Recreational maths with 138647

• 138647 backwards is 746831
• The number of decimal digits it has is: 6
• The sum of 138647's digits is 29
• More coming soon!