138742127

Names of 138742127

• Cardinal: 138742127 can be written as One hundred thirty-eight million, seven hundred forty-two thousand, one hundred twenty-seven.

Scientific notation

• Scientific notation: 1.38742127 × 10⁸

Factors of 138742127

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 138742127

Divisors of 138742127

• Number of divisors d(n): 2
• Complete list of divisors:
  1 138742127
• Sum of all divisors σ(n): 138742128
• Sum of proper divisors (its aliquot sum) s(n): 1
• 138742127 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 138742126

Bases of 138742127

• Binary: 1000010001010000100101101111₂
• Hexadecimal: 0x845096F
• Base-36: 2ALQ3Z

Squares and roots of 138742127

• 138742127 squared (138742127²) is 19249377804484129
• 138742127 cubed (138742127³) is 2670699620020718195202383
• The square root of 138742127 is 11778.8847944107
• The cube root of 138742127 is 517.6896107135

Scales and comparisons

• 138,742,127 seconds is equal to 4 years, 21 weeks, 2 days, 19 hours, 28 minutes, 47 seconds.
• To count from 1 to 138,742,127 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 138742127 cubic inches would be around 43.1 feet tall.

Recreational maths with 138742127

• 138742127 backwards is 721247831
• The number of decimal digits it has is: 9
• The sum of 138742127's digits is 35
• More coming soon!