138679841

Names of 138679841

• Cardinal: 138679841 can be written as One hundred thirty-eight million, six hundred seventy-nine thousand, eight hundred forty-one.

Scientific notation

• Scientific notation: 1.38679841 × 10⁸

Factors of 138679841

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 7298958

Divisors of 138679841

• Number of divisors d(n): 4
• Complete list of divisors:
  1 19 7298939 138679841
• Sum of all divisors σ(n): 145978800
• Sum of proper divisors (its aliquot sum) s(n): 7298959
• 138679841 is a deficient number, because the sum of its proper divisors (7298959) is less than itself. Its deficiency is 131380882

Bases of 138679841

• Binary: 1000010001000001011000100001₂
• Hexadecimal: 0x8441621
• Base-36: 2AKE1T

Squares and roots of 138679841

• 138679841 squared (138679841²) is 19232098299785281
• 138679841 cubed (138679841³) is 2667104334310593103220321
• The square root of 138679841 is 11776.2405291333
• The cube root of 138679841 is 517.6121297007

Scales and comparisons

• 138,679,841 seconds is equal to 4 years, 21 weeks, 2 days, 2 hours, 10 minutes, 41 seconds.
• To count from 1 to 138,679,841 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 138679841 cubic inches would be around 43.1 feet tall.

Recreational maths with 138679841

• 138679841 backwards is 148976831
• The number of decimal digits it has is: 9
• The sum of 138679841's digits is 47
• More coming soon!