138216835

Names of 138216835

• Cardinal: 138216835 can be written as One hundred thirty-eight million, two hundred sixteen thousand, eight hundred thirty-five.

Scientific notation

• Scientific notation: 1.38216835 × 10⁸

Factors of 138216835

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 642917

Divisors of 138216835

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 43 215 642869 3214345 27643367 138216835
• Sum of all divisors σ(n): 169717680
• Sum of proper divisors (its aliquot sum) s(n): 31500845
• 138216835 is a deficient number, because the sum of its proper divisors (31500845) is less than itself. Its deficiency is 106715990

Bases of 138216835

• Binary: 1000001111010000010110000011₂
• Hexadecimal: 0x83D0583
• Base-36: 2AAGSJ

Squares and roots of 138216835

• 138216835 squared (138216835²) is 19103893477417225
• 138216835 cubed (138216835³) is 2640479692625752813982875
• The square root of 138216835 is 11756.5656124567
• The cube root of 138216835 is 517.0354423509

Scales and comparisons

• 138,216,835 seconds is equal to 4 years, 20 weeks, 3 days, 17 hours, 33 minutes, 55 seconds.
• To count from 1 to 138,216,835 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 138216835 cubic inches would be around 43.1 feet tall.

Recreational maths with 138216835

• 138216835 backwards is 538612831
• The number of decimal digits it has is: 9
• The sum of 138216835's digits is 37
• More coming soon!