7040021

Names of 7040021

• Cardinal: 7040021 can be written as Seven million, forty thousand and twenty-one.

Scientific notation

• Scientific notation: 7.040021 × 10⁶

Factors of 7040021

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 7040021

Divisors of 7040021

• Number of divisors d(n): 2
• Complete list of divisors:
  1 7040021
• Sum of all divisors σ(n): 7040022
• Sum of proper divisors (its aliquot sum) s(n): 1
• 7040021 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 7040020

Bases of 7040021

• Binary: 11010110110110000010101₂
• Hexadecimal: 0x6B6C15
• Base-36: 46W45

Squares and roots of 7040021

• 7040021 squared (7040021²) is 49561895680441
• 7040021 cubed (7040021³) is 348916786390113929261
• The square root of 7040021 is 2653.3037896179
• The cube root of 7040021 is 191.6569848501

Scales and comparisons

• 7,040,021 seconds is equal to 11 weeks, 4 days, 11 hours, 33 minutes, 41 seconds.
• To count from 1 to 7,040,021 would take you about seventeen 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 7040021 cubic inches would be around 16 feet tall.

Recreational maths with 7040021

• 7040021 backwards is 1200407
• The number of decimal digits it has is: 7
• The sum of 7040021's digits is 14
• More coming soon!