13420890

Names of 13420890

• Cardinal: 13420890 can be written as Thirteen million, four hundred twenty thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 1.342089 × 10⁷

Factors of 13420890

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 280

Divisors of 13420890

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 54 63 70 81 90 105 126 135 162 189 210 243 263 270 315 378 405 486 526 567 630 729 789 810 945 1134 1215 1315 1458 1578 1701 1841 1890 2367 2430 2630 2835 3402 3645 3682 3945 4734 5103 5523 5670 7101 7290 7890 8505 9205 10206 11046 11835 14202 16569 17010 18410 21303 23670 25515 27615 33138 35505 42606 49707 51030 55230 63909 71010 82845 99414 106515 127818 149121 165690 191727 213030 248535 298242 319545 383454 447363 497070 639090 745605 894726 958635 1342089 1491210 1917270 2236815 2684178 4473630 6710445 13420890
• Sum of all divisors σ(n): 41551488
• Sum of proper divisors (its aliquot sum) s(n): 28130598
• 13420890 is an abundant number, because the sum of its proper divisors (28130598) is greater than itself. Its abundance is 14709708

Bases of 13420890

• Binary: 110011001100100101011010₂
• Hexadecimal: 0xCCC95A
• Base-36: 7ZNMI

Squares and roots of 13420890

• 13420890 squared (13420890²) is 180120288392100
• 13420890 cubed (13420890³) is 2417374577278650969000
• The square root of 13420890 is 3663.4532889065
• The cube root of 13420890 is 237.6441378057

Scales and comparisons

• 13,420,890 seconds is equal to 22 weeks, 1 day, 8 hours, 1 minute, 30 seconds.
• To count from 1 to 13,420,890 would take you about thirty-three 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 13420890 cubic inches would be around 19.8 feet tall.

Recreational maths with 13420890

• 13420890 backwards is 09802431
• 13420890 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13420890's digits is 27
• More coming soon!