139639807

Names of 139639807

• Cardinal: 139639807 can be written as One hundred thirty-nine million, six hundred thirty-nine thousand, eight hundred seven.

Scientific notation

• Scientific notation: 1.39639807 × 10⁸

Factors of 139639807

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 139639807

Divisors of 139639807

• Number of divisors d(n): 2
• Complete list of divisors:
  1 139639807
• Sum of all divisors σ(n): 139639808
• Sum of proper divisors (its aliquot sum) s(n): 1
• 139639807 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 139639806

Bases of 139639807

• Binary: 1000010100101011101111111111₂
• Hexadecimal: 0x852BBFF
• Base-36: 2B4YRJ

Squares and roots of 139639807

• 139639807 squared (139639807²) is 19499275698997249
• 139639807 cubed (139639807³) is 2722875095247765943890943
• The square root of 139639807 is 11816.9288311303
• The cube root of 139639807 is 518.8037182091

Scales and comparisons

• 139,639,807 seconds is equal to 4 years, 22 weeks, 6 days, 4 hours, 50 minutes, 7 seconds.
• To count from 1 to 139,639,807 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 139639807 cubic inches would be around 43.2 feet tall.

Recreational maths with 139639807

• 139639807 backwards is 708936931
• The number of decimal digits it has is: 9
• The sum of 139639807's digits is 46
• More coming soon!