428561521

Names of 428561521

• Cardinal: 428561521 can be written as Four hundred twenty-eight million, five hundred sixty-one thousand, five hundred twenty-one.

Scientific notation

• Scientific notation: 4.28561521 × 10⁸

Factors of 428561521

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 9966590

Divisors of 428561521

• Number of divisors d(n): 4
• Complete list of divisors:
  1 43 9966547 428561521
• Sum of all divisors σ(n): 438528112
• Sum of proper divisors (its aliquot sum) s(n): 9966591
• 428561521 is a deficient number, because the sum of its proper divisors (9966591) is less than itself. Its deficiency is 418594930

Bases of 428561521

• Binary: 11001100010110101010001110001₂
• Hexadecimal: 0x198B5471
• Base-36: 735K6P

Squares and roots of 428561521

• 428561521 squared (428561521²) is 183664977281833441
• 428561521 cubed (428561521³) is 78711742018332985143623761
• The square root of 428561521 is 20701.7274883039
• The cube root of 428561521 is 753.9416312491

Scales and comparisons

• 428,561,521 seconds is equal to 13 years, 32 weeks, 4 days, 4 hours, 52 minutes, 1 second.
• To count from 1 to 428,561,521 would take you about twenty years!

  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 428561521 cubic inches would be around 62.8 feet tall.

Recreational maths with 428561521

• 428561521 backwards is 125165824
• The number of decimal digits it has is: 9
• The sum of 428561521's digits is 34
• More coming soon!