138123395

Names of 138123395

• Cardinal: 138123395 can be written as One hundred thirty-eight million, one hundred twenty-three thousand, three hundred ninety-five.

Scientific notation

• Scientific notation: 1.38123395 × 10⁸

Factors of 138123395

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1201101

Divisors of 138123395

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 23 115 1201073 6005365 27624679 138123395
• Sum of all divisors σ(n): 172954656
• Sum of proper divisors (its aliquot sum) s(n): 34831261
• 138123395 is a deficient number, because the sum of its proper divisors (34831261) is less than itself. Its deficiency is 103292134

Bases of 138123395

• Binary: 1000001110111001100010000011₂
• Hexadecimal: 0x83B9883
• Base-36: 2A8GOZ

Squares and roots of 138123395

• 138123395 squared (138123395²) is 19078072246326025
• 138123395 cubed (138123395³) is 2635128108717826849854875
• The square root of 138123395 is 11752.5909909263
• The cube root of 138123395 is 516.9189040081

Scales and comparisons

• 138,123,395 seconds is equal to 4 years, 20 weeks, 2 days, 15 hours, 36 minutes, 35 seconds.
• To count from 1 to 138,123,395 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 138123395 cubic inches would be around 43.1 feet tall.

Recreational maths with 138123395

• 138123395 backwards is 593321831
• The number of decimal digits it has is: 9
• The sum of 138123395's digits is 35
• More coming soon!