420428442

Names of 420428442

• Cardinal: 420428442 can be written as Four hundred twenty million, four hundred twenty-eight thousand, four hundred forty-two.

Scientific notation

• Scientific notation: 4.20428442 × 10⁸

Factors of 420428442

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1003

Divisors of 420428442

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 7 14 21 42 47 94 141 282 329 373 571 658 746 987 1119 1142 1713 1974 2238 2611 3426 3997 5222 7833 7994 11991 15666 17531 23982 26837 35062 52593 53674 80511 105186 122717 161022 187859 212983 245434 368151 375718 425966 563577 638949 736302 1127154 1277898 1490881 2981762 4472643 8945286 10010201 20020402 30030603 60061206 70071407 140142814 210214221 420428442
• Sum of all divisors σ(n): 985780224
• Sum of proper divisors (its aliquot sum) s(n): 565351782
• 420428442 is an abundant number, because the sum of its proper divisors (565351782) is greater than itself. Its abundance is 144923340

Bases of 420428442

• Binary: 11001000011110011101010011010₂
• Hexadecimal: 0x190F3A9A
• Base-36: 6YB8NU

Squares and roots of 420428442

• 420428442 squared (420428442²) is 176760074842547364
• 420428442 cubed (420428442³) is 74314962873855583557726888
• The square root of 420428442 is 20504.3517819999
• The cube root of 420428442 is 749.1417988067

Scales and comparisons

• 420,428,442 seconds is equal to 13 years, 19 weeks, 1 day, 1 hour, 40 minutes, 42 seconds.
• To count from 1 to 420,428,442 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 420428442 cubic inches would be around 62.4 feet tall.

Recreational maths with 420428442

• 420428442 backwards is 244824024
• The number of decimal digits it has is: 9
• The sum of 420428442's digits is 30
• More coming soon!