13521970

Names of 13521970

• Cardinal: 13521970 can be written as Thirteen million, five hundred twenty-one thousand, nine hundred seventy.

Scientific notation

• Scientific notation: 1.352197 × 10⁷

Factors of 13521970

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1075

Divisors of 13521970

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 7 10 11 14 17 22 34 35 55 70 77 85 110 119 154 170 187 238 374 385 595 770 935 1033 1190 1309 1870 2066 2618 5165 6545 7231 10330 11363 13090 14462 17561 22726 35122 36155 56815 72310 79541 87805 113630 122927 159082 175610 193171 245854 386342 397705 614635 795410 965855 1229270 1352197 1931710 2704394 6760985 13521970
• Sum of all divisors σ(n): 32161536
• Sum of proper divisors (its aliquot sum) s(n): 18639566
• 13521970 is an abundant number, because the sum of its proper divisors (18639566) is greater than itself. Its abundance is 5117596

Bases of 13521970

• Binary: 110011100101010000110010₂
• Hexadecimal: 0xCE5432
• Base-36: 81TMA

Squares and roots of 13521970

• 13521970 squared (13521970²) is 182843672680900
• 13521970 cubed (13521970³) is 2472406656680949373000
• The square root of 13521970 is 3677.2231370967
• The cube root of 13521970 is 238.2392552009

Scales and comparisons

• 13,521,970 seconds is equal to 22 weeks, 2 days, 12 hours, 6 minutes, 10 seconds.
• To count from 1 to 13,521,970 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 13521970 cubic inches would be around 19.9 feet tall.

Recreational maths with 13521970

• 13521970 backwards is 07912531
• The number of decimal digits it has is: 8
• The sum of 13521970's digits is 28
• More coming soon!