13240138

Names of 13240138

• Cardinal: 13240138 can be written as Thirteen million, two hundred forty thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 1.3240138 × 10⁷

Factors of 13240138

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 98876

Divisors of 13240138

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 67 134 98807 197614 6620069 13240138
• Sum of all divisors σ(n): 20156832
• Sum of proper divisors (its aliquot sum) s(n): 6916694
• 13240138 is a deficient number, because the sum of its proper divisors (6916694) is less than itself. Its deficiency is 6323444

Bases of 13240138

• Binary: 110010100000011101001010₂
• Hexadecimal: 0xCA074A
• Base-36: 7VS5M

Squares and roots of 13240138

• 13240138 squared (13240138²) is 175301254259044
• 13240138 cubed (13240138³) is 2321012797962830308072
• The square root of 13240138 is 3638.7000425979
• The cube root of 13240138 is 236.5724516433

Scales and comparisons

• 13,240,138 seconds is equal to 21 weeks, 6 days, 5 hours, 48 minutes, 58 seconds.
• To count from 1 to 13,240,138 would take you about thirty-two weeks!

  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 13240138 cubic inches would be around 19.7 feet tall.

Recreational maths with 13240138

• 13240138 backwards is 83104231
• The number of decimal digits it has is: 8
• The sum of 13240138's digits is 22
• More coming soon!