138423941

Names of 138423941

• Cardinal: 138423941 can be written as One hundred thirty-eight million, four hundred twenty-three thousand, nine hundred forty-one.

Scientific notation

• Scientific notation: 1.38423941 × 10⁸

Factors of 138423941

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 138423941

Divisors of 138423941

• Number of divisors d(n): 2
• Complete list of divisors:
  1 138423941
• Sum of all divisors σ(n): 138423942
• Sum of proper divisors (its aliquot sum) s(n): 1
• 138423941 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 138423940

Bases of 138423941

• Binary: 1000010000000010111010000101₂
• Hexadecimal: 0x8402E85
• Base-36: 2AEWLH

Squares and roots of 138423941

• 138423941 squared (138423941²) is 19161187441971481
• 138423941 cubed (138423941³) is 2652367079957401209626621
• The square root of 138423941 is 11765.3704149083
• The cube root of 138423941 is 517.2935578037

Scales and comparisons

• 138,423,941 seconds is equal to 4 years, 20 weeks, 6 days, 3 hours, 5 minutes, 41 seconds.
• To count from 1 to 138,423,941 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 138423941 cubic inches would be around 43.1 feet tall.

Recreational maths with 138423941

• 138423941 backwards is 149324831
• The number of decimal digits it has is: 9
• The sum of 138423941's digits is 35
• More coming soon!