138008739

Names of 138008739

• Cardinal: 138008739 can be written as One hundred thirty-eight million, eight thousand, seven hundred thirty-nine.

Scientific notation

• Scientific notation: 1.38008739 × 10⁸

Factors of 138008739

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 4182097

Divisors of 138008739

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 11 33 4182083 12546249 46002913 138008739
• Sum of all divisors σ(n): 200740032
• Sum of proper divisors (its aliquot sum) s(n): 62731293
• 138008739 is a deficient number, because the sum of its proper divisors (62731293) is less than itself. Its deficiency is 75277446

Bases of 138008739

• Binary: 1000001110011101100010100011₂
• Hexadecimal: 0x839D8A3
• Base-36: 2A6083

Squares and roots of 138008739

• 138008739 squared (138008739²) is 19046412040370121
• 138008739 cubed (138008739³) is 2628571308165897492487419
• The square root of 138008739 is 11747.7120751233
• The cube root of 138008739 is 516.7758332397

Scales and comparisons

• 138,008,739 seconds is equal to 4 years, 20 weeks, 1 day, 7 hours, 45 minutes, 39 seconds.
• To count from 1 to 138,008,739 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 138008739 cubic inches would be around 43.1 feet tall.

Recreational maths with 138008739

• 138008739 backwards is 937800831
• The number of decimal digits it has is: 9
• The sum of 138008739's digits is 39
• More coming soon!