420138198942

Names of 420138198942

• Cardinal: 420138198942 can be written as Four hundred twenty billion, one hundred thirty-eight million, one hundred ninety-eight thousand, nine hundred forty-two.

Scientific notation

• Scientific notation: 4.20138198942 × 10¹¹

Factors of 420138198942

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 129912886

Divisors of 420138198942

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 6 7 11 14 21 22 33 42 49 66 77 98 147 154 231 294 462 539 1078 1617 3234 129912863 259825726 389738589 779477178 909390041 1429041493 1818780082 2728170123 2858082986 4287124479 5456340246 6365730287 8574248958 10003290451 12731460574 19097190861 20006580902 30009871353 38194381722 60019742706 70023033157 140046066314 210069099471 420138198942
• Sum of all divisors σ(n): 1066324787712
• Sum of proper divisors (its aliquot sum) s(n): 646186588770
• 420138198942 is an abundant number, because the sum of its proper divisors (646186588770) is greater than itself. Its abundance is 226048389828

Bases of 420138198942

• Binary: 110000111010010001100000010011110011110₂
• Hexadecimal: 0x61D230279E
• Base-36: 5D0BFP26

Squares and roots of 420138198942

• 420138198942 squared (420138198942²) is 176516106210227569919364
• 420138198942 cubed (420138198942³) is 74161158947419792445874967130112888
• The square root of 420138198942 is 648180.6838698605
• The cube root of 420138198942 is 7489.6936893977

Scales and comparisons

• 420,138,198,942 seconds is equal to 13,359 years, 4 weeks, 6 days, 15 hours, 15 minutes, 42 seconds.
• To count from 1 to 420,138,198,942 would take you about twenty-six thousand, seven hundred eighteen 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 420138198942 cubic inches would be around 624.1 feet tall.

Recreational maths with 420138198942

• 420138198942 backwards is 249891831024
• The number of decimal digits it has is: 12
• The sum of 420138198942's digits is 51
• More coming soon!