428216531

Names of 428216531

• Cardinal: 428216531 can be written as Four hundred twenty-eight million, two hundred sixteen thousand, five hundred thirty-one.

Scientific notation

• Scientific notation: 4.28216531 × 10⁸

Factors of 428216531

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 41532

Divisors of 428216531

• Number of divisors d(n): 4
• Complete list of divisors:
  1 19031 22501 428216531
• Sum of all divisors σ(n): 428258064
• Sum of proper divisors (its aliquot sum) s(n): 41533
• 428216531 is a deficient number, because the sum of its proper divisors (41533) is less than itself. Its deficiency is 428174998

Bases of 428216531

• Binary: 11001100001100001000011010011₂
• Hexadecimal: 0x198610D3
• Base-36: 72Y5ZN

Squares and roots of 428216531

• 428216531 squared (428216531²) is 183369397421673961
• 428216531 cubed (428216531³) is 78521807255469567792449291
• The square root of 428216531 is 20693.3934143243
• The cube root of 428216531 is 753.7392704557

Scales and comparisons

• 428,216,531 seconds is equal to 13 years, 32 weeks, 5 hours, 2 minutes, 11 seconds.
• To count from 1 to 428,216,531 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 428216531 cubic inches would be around 62.8 feet tall.

Recreational maths with 428216531

• 428216531 backwards is 135612824
• The number of decimal digits it has is: 9
• The sum of 428216531's digits is 32
• More coming soon!