138725039

Names of 138725039

• Cardinal: 138725039 can be written as One hundred thirty-eight million, seven hundred twenty-five thousand and thirty-nine.

Scientific notation

• Scientific notation: 1.38725039 × 10⁸

Factors of 138725039

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 6049

Divisors of 138725039

• Number of divisors d(n): 8
• Complete list of divisors:
  1 73 337 5639 24601 411647 1900343 138725039
• Sum of all divisors σ(n): 141067680
• Sum of proper divisors (its aliquot sum) s(n): 2342641
• 138725039 is a deficient number, because the sum of its proper divisors (2342641) is less than itself. Its deficiency is 136382398

Bases of 138725039

• Binary: 1000010001001100011010101111₂
• Hexadecimal: 0x844C6AF
• Base-36: 2ALCXB

Squares and roots of 138725039

• 138725039 squared (138725039²) is 19244636445551521
• 138725039 cubed (138725039³) is 2669712941449956127234319
• The square root of 138725039 is 11778.1594062909
• The cube root of 138725039 is 517.6683563103

Scales and comparisons

• 138,725,039 seconds is equal to 4 years, 21 weeks, 2 days, 14 hours, 43 minutes, 59 seconds.
• To count from 1 to 138,725,039 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 138725039 cubic inches would be around 43.1 feet tall.

Recreational maths with 138725039

• 138725039 backwards is 930527831
• The number of decimal digits it has is: 9
• The sum of 138725039's digits is 38
• More coming soon!