428247321

Names of 428247321

• Cardinal: 428247321 can be written as Four hundred twenty-eight million, two hundred forty-seven thousand, three hundred twenty-one.

Scientific notation

• Scientific notation: 4.28247321 × 10⁸

Factors of 428247321

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 4922415

Divisors of 428247321

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 29 87 4922383 14767149 142749107 428247321
• Sum of all divisors σ(n): 590686080
• Sum of proper divisors (its aliquot sum) s(n): 162438759
• 428247321 is a deficient number, because the sum of its proper divisors (162438759) is less than itself. Its deficiency is 265808562

Bases of 428247321

• Binary: 11001100001101000100100011001₂
• Hexadecimal: 0x19868919
• Base-36: 72YTQX

Squares and roots of 428247321

• 428247321 squared (428247321²) is 183395767943677041
• 428247321 cubed (428247321³) is 78538746304617371697457161
• The square root of 428247321 is 20694.1373581989
• The cube root of 428247321 is 753.7573353631

Scales and comparisons

• 428,247,321 seconds is equal to 13 years, 32 weeks, 13 hours, 35 minutes, 21 seconds.
• To count from 1 to 428,247,321 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 428247321 cubic inches would be around 62.8 feet tall.

Recreational maths with 428247321

• 428247321 backwards is 123742824
• The number of decimal digits it has is: 9
• The sum of 428247321's digits is 33
• More coming soon!