428001439

Names of 428001439

• Cardinal: 428001439 can be written as Four hundred twenty-eight million, one thousand, four hundred thirty-nine.

Scientific notation

• Scientific notation: 4.28001439 × 10⁸

Factors of 428001439

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 9437

Divisors of 428001439

• Number of divisors d(n): 8
• Complete list of divisors:
  1 199 239 8999 47561 1790801 2150761 428001439
• Sum of all divisors σ(n): 432000000
• Sum of proper divisors (its aliquot sum) s(n): 3998561
• 428001439 is a deficient number, because the sum of its proper divisors (3998561) is less than itself. Its deficiency is 424002878

Bases of 428001439

• Binary: 11001100000101100100010011111₂
• Hexadecimal: 0x1982C89F
• Base-36: 72TK0V

Squares and roots of 428001439

• 428001439 squared (428001439²) is 183185231786070721
• 428001439 cubed (428001439³) is 78403542807986808743767519
• The square root of 428001439 is 20688.1956438931
• The cube root of 428001439 is 753.6130489239

Scales and comparisons

• 428,001,439 seconds is equal to 13 years, 31 weeks, 4 days, 17 hours, 17 minutes, 19 seconds.
• To count from 1 to 428,001,439 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 428001439 cubic inches would be around 62.8 feet tall.

Recreational maths with 428001439

• 428001439 backwards is 934100824
• The number of decimal digits it has is: 9
• The sum of 428001439's digits is 31
• More coming soon!