4005642

Names of 4005642

• Cardinal: 4005642 can be written as Four million, five thousand, six hundred forty-two.

Scientific notation

• Scientific notation: 4.005642 × 10⁶

Factors of 4005642

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 422

Divisors of 4005642

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 6 17 34 51 102 173 227 346 454 519 681 1038 1362 2941 3859 5882 7718 8823 11577 17646 23154 39271 78542 117813 235626 667607 1335214 2002821 4005642
• Sum of all divisors σ(n): 8569152
• Sum of proper divisors (its aliquot sum) s(n): 4563510
• 4005642 is an abundant number, because the sum of its proper divisors (4563510) is greater than itself. Its abundance is 557868

Bases of 4005642

• Binary: 1111010001111100001010₂
• Hexadecimal: 0x3D1F0A
• Base-36: 2DURU

Squares and roots of 4005642

• 4005642 squared (4005642²) is 16045167832164
• 4005642 cubed (4005642³) is 64271198165565069288
• The square root of 4005642 is 2001.4100029729
• The cube root of 4005642 is 158.8147044399

Scales and comparisons

• 4,005,642 seconds is equal to 6 weeks, 4 days, 8 hours, 40 minutes, 42 seconds.
• To count from 1 to 4,005,642 would take you about nine 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 4005642 cubic inches would be around 13.2 feet tall.

Recreational maths with 4005642

• 4005642 backwards is 2465004
• The number of decimal digits it has is: 7
• The sum of 4005642's digits is 21
• More coming soon!