138917

Names of 138917

• Cardinal: 138917 can be written as One hundred thirty-eight thousand, nine hundred seventeen.

Scientific notation

• Scientific notation: 1.38917 × 10⁵

Factors of 138917

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 138917

Divisors of 138917

• Number of divisors d(n): 2
• Complete list of divisors:
  1 138917
• Sum of all divisors σ(n): 138918
• Sum of proper divisors (its aliquot sum) s(n): 1
• 138917 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 138916

Bases of 138917

• Binary: 100001111010100101₂
• Hexadecimal: 0x21EA5
• Base-36: 2Z6T

Squares and roots of 138917

• 138917 squared (138917²) is 19297932889
• 138917 cubed (138917³) is 2680810943141213
• The square root of 138917 is 372.7157093549
• The cube root of 138917 is 51.7907021071

Scales and comparisons

• 138,917 seconds is equal to 1 day, 14 hours, 35 minutes, 17 seconds.
• To count from 1 to 138,917 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 138917 cubic inches would be around 4.3 feet tall.

Recreational maths with 138917

• 138917 backwards is 719831
• The number of decimal digits it has is: 6
• The sum of 138917's digits is 29
• More coming soon!