12938835

Names of 12938835

• Cardinal: 12938835 can be written as Twelve million, nine hundred thirty-eight thousand, eight hundred thirty-five.

Scientific notation

• Scientific notation: 1.2938835 × 10⁷

Factors of 12938835

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 9507

Divisors of 12938835

• Number of divisors d(n): 32
• Complete list of divisors:
  1 3 5 7 13 15 21 35 39 65 91 105 195 273 455 1365 9479 28437 47395 66353 123227 142185 199059 331765 369681 616135 862589 995295 1848405 2587767 4312945 12938835
• Sum of all divisors σ(n): 25482240
• Sum of proper divisors (its aliquot sum) s(n): 12543405
• 12938835 is a deficient number, because the sum of its proper divisors (12543405) is less than itself. Its deficiency is 395430

Bases of 12938835

• Binary: 110001010110111001010011₂
• Hexadecimal: 0xC56E53
• Base-36: 7PBO3

Squares and roots of 12938835

• 12938835 squared (12938835²) is 167413451157225
• 12938835 cubed (12938835³) is 2166135021303893332875
• The square root of 12938835 is 3597.0592155259
• The cube root of 12938835 is 234.7641212481

Scales and comparisons

• 12,938,835 seconds is equal to 21 weeks, 2 days, 18 hours, 7 minutes, 15 seconds.
• To count from 1 to 12,938,835 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 12938835 cubic inches would be around 19.6 feet tall.

Recreational maths with 12938835

• 12938835 backwards is 53883921
• 12938835 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 12938835's digits is 39
• More coming soon!