13640425

Names of 13640425

• Cardinal: 13640425 can be written as Thirteen million, six hundred forty thousand, four hundred twenty-five.

Scientific notation

• Scientific notation: 1.3640425 × 10⁷

Factors of 13640425

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 545622

Divisors of 13640425

• Number of divisors d(n): 6
• Complete list of divisors:
  1 5 25 545617 2728085 13640425
• Sum of all divisors σ(n): 16914158
• Sum of proper divisors (its aliquot sum) s(n): 3273733
• 13640425 is a deficient number, because the sum of its proper divisors (3273733) is less than itself. Its deficiency is 10366692

Bases of 13640425

• Binary: 110100000010001011101001₂
• Hexadecimal: 0xD022E9
• Base-36: 84D0P

Squares and roots of 13640425

• 13640425 squared (13640425²) is 186061194180625
• 13640425 cubed (13640425³) is 2537953764631251765625
• The square root of 13640425 is 3693.2945996765
• The cube root of 13640425 is 238.9329071781

Scales and comparisons

• 13,640,425 seconds is equal to 22 weeks, 3 days, 21 hours, 25 seconds.
• To count from 1 to 13,640,425 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 13640425 cubic inches would be around 19.9 feet tall.

Recreational maths with 13640425

• 13640425 backwards is 52404631
• 13640425 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13640425's digits is 25
• More coming soon!