13139742

Names of 13139742

• Cardinal: 13139742 can be written as Thirteen million, one hundred thirty-nine thousand, seven hundred forty-two.

Scientific notation

• Scientific notation: 1.3139742 × 10⁷

Factors of 13139742

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 279

Divisors of 13139742

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 7 11 14 17 21 22 33 34 42 49 51 66 77 98 102 119 147 154 187 231 238 239 294 357 374 462 478 539 561 714 717 833 1078 1122 1309 1434 1617 1666 1673 2499 2618 2629 3234 3346 3927 4063 4998 5019 5258 7854 7887 8126 9163 10038 11711 12189 15774 18326 18403 23422 24378 27489 28441 35133 36806 44693 54978 55209 56882 70266 85323 89386 110418 128821 134079 170646 199087 257642 268158 312851 386463 398174 597261 625702 772926 938553 1194522 1877106 2189957 4379914 6569871 13139742
• Sum of all divisors σ(n): 35458560
• Sum of proper divisors (its aliquot sum) s(n): 22318818
• 13139742 is an abundant number, because the sum of its proper divisors (22318818) is greater than itself. Its abundance is 9179076

Bases of 13139742

• Binary: 110010000111111100011110₂
• Hexadecimal: 0xC87F1E
• Base-36: 7TMOU

Squares and roots of 13139742

• 13139742 squared (13139742²) is 172652819826564
• 13139742 cubed (13139742³) is 2268613508093535706488
• The square root of 13139742 is 3624.8782048505
• The cube root of 13139742 is 235.9729812025

Scales and comparisons

• 13,139,742 seconds is equal to 21 weeks, 5 days, 1 hour, 55 minutes, 42 seconds.
• To count from 1 to 13,139,742 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 13139742 cubic inches would be around 19.7 feet tall.

Recreational maths with 13139742

• 13139742 backwards is 24793131
• The number of decimal digits it has is: 8
• The sum of 13139742's digits is 30
• More coming soon!