139218

Names of 139218

• Cardinal: 139218 can be written as One hundred thirty-nine thousand, two hundred eighteen.

Scientific notation

• Scientific notation: 1.39218 × 10⁵

Factors of 139218

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 23208

Divisors of 139218

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 3 6 23203 46406 69609 139218
• Sum of all divisors σ(n): 278448
• Sum of proper divisors (its aliquot sum) s(n): 139230
• 139218 is an abundant number, because the sum of its proper divisors (139230) is greater than itself. Its abundance is 12

Bases of 139218

• Binary: 100001111111010010₂
• Hexadecimal: 0x21FD2
• Base-36: 2ZF6

Squares and roots of 139218

• 139218 squared (139218²) is 19381651524
• 139218 cubed (139218³) is 2698274761868232
• The square root of 139218 is 373.1192838759
• The cube root of 139218 is 51.8280811553

Scales and comparisons

• 139,218 seconds is equal to 1 day, 14 hours, 40 minutes, 18 seconds.
• To count from 1 to 139,218 would take you about fourteen hours.

  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 139218 cubic inches would be around 4.3 feet tall.

Recreational maths with 139218

• 139218 backwards is 812931
• The number of decimal digits it has is: 6
• The sum of 139218's digits is 24
• More coming soon!