138516481

Names of 138516481

• Cardinal: 138516481 can be written as One hundred thirty-eight million, five hundred sixteen thousand, four hundred eighty-one.

Scientific notation

• Scientific notation: 1.38516481 × 10⁸

Factors of 138516481

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 138516481

Divisors of 138516481

• Number of divisors d(n): 2
• Complete list of divisors:
  1 138516481
• Sum of all divisors σ(n): 138516482
• Sum of proper divisors (its aliquot sum) s(n): 1
• 138516481 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 138516480

Bases of 138516481

• Binary: 1000010000011001100000000001₂
• Hexadecimal: 0x8419801
• Base-36: 2AGW01

Squares and roots of 138516481

• 138516481 squared (138516481²) is 19186815508623361
• 138516481 cubed (138516481³) is 2657690165850733120112641
• The square root of 138516481 is 11769.3024857043
• The cube root of 138516481 is 517.4088068519

Scales and comparisons

• 138,516,481 seconds is equal to 4 years, 21 weeks, 4 hours, 48 minutes, 1 second.
• To count from 1 to 138,516,481 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 138516481 cubic inches would be around 43.1 feet tall.

Recreational maths with 138516481

• 138516481 backwards is 184615831
• The number of decimal digits it has is: 9
• The sum of 138516481's digits is 37
• More coming soon!