428328647

Names of 428328647

• Cardinal: 428328647 can be written as Four hundred twenty-eight million, three hundred twenty-eight thousand, six hundred forty-seven.

Scientific notation

• Scientific notation: 4.28328647 × 10⁸

Factors of 428328647

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 199633

Divisors of 428328647

• Number of divisors d(n): 8
• Complete list of divisors:
  1 19 113 2147 199501 3790519 22543613 428328647
• Sum of all divisors σ(n): 454864560
• Sum of proper divisors (its aliquot sum) s(n): 26535913
• 428328647 is a deficient number, because the sum of its proper divisors (26535913) is less than itself. Its deficiency is 401792734

Bases of 428328647

• Binary: 11001100001111100011011000111₂
• Hexadecimal: 0x1987C6C7
• Base-36: 730KHZ

Squares and roots of 428328647

• 428328647 squared (428328647²) is 183465429840850609
• 428328647 cubed (428328647³) is 78583499335004966682096023
• The square root of 428328647 is 20696.1022175675
• The cube root of 428328647 is 753.8050462581

Scales and comparisons

• 428,328,647 seconds is equal to 13 years, 32 weeks, 1 day, 12 hours, 10 minutes, 47 seconds.
• To count from 1 to 428,328,647 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 428328647 cubic inches would be around 62.8 feet tall.

Recreational maths with 428328647

• 428328647 backwards is 746823824
• The number of decimal digits it has is: 9
• The sum of 428328647's digits is 44
• More coming soon!