138941842890

Names of 138941842890

• Cardinal: 138941842890 can be written as One hundred thirty-eight billion, nine hundred forty-one million, eight hundred forty-two thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 1.3894184289 × 10¹¹

Factors of 138941842890

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 943046

Divisors of 138941842890

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 5 6 10 15 30 4937 9874 14811 24685 29622 49370 74055 148110 938099 1876198 2814297 4690495 5628594 9380990 14071485 28142970 4631394763 9262789526 13894184289 23156973815 27788368578 46313947630 69470921445 138941842890
• Sum of all divisors σ(n): 333528321600
• Sum of proper divisors (its aliquot sum) s(n): 194586478710
• 138941842890 is an abundant number, because the sum of its proper divisors (194586478710) is greater than itself. Its abundance is 55644635820

Bases of 138941842890

• Binary: 10000001011001100101000100010111001010₂
• Hexadecimal: 0x20599445CA
• Base-36: 1RTUDW3U

Squares and roots of 138941842890

• 138941842890 squared (138941842890²) is 19304835705669443552100
• 138941842890 cubed (138941842890³) is 2682249449634386108289601729569000
• The square root of 138941842890 is 372749.0347271203
• The cube root of 138941842890 is 5179.3789212029

Scales and comparisons

• 138,941,842,890 seconds is equal to 4,417 years, 47 weeks, 6 days, 4 hours, 21 minutes, 30 seconds.
• To count from 1 to 138,941,842,890 would take you about eight thousand, eight hundred thirty-five 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 138941842890 cubic inches would be around 431.6 feet tall.

Recreational maths with 138941842890

• 138941842890 backwards is 098248149831
• The number of decimal digits it has is: 12
• The sum of 138941842890's digits is 57
• More coming soon!