642238464080

Names of 642238464080

• Cardinal: 642238464080 can be written as Six hundred forty-two billion, two hundred thirty-eight million, four hundred sixty-four thousand and eighty.

Scientific notation

• Scientific notation: 6.4223846408 × 10¹¹

Factors of 642238464080

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 89606

Divisors of 642238464080

• Number of divisors d(n): 30
• Complete list of divisors:
  1 2 4 5 8 10 16 20 40 80 89599 179198 358396 447995 716792 895990 1433584 1791980 3583960 7167920 8027980801 16055961602 32111923204 40139904005 64223846408 80279808010 128447692816 160559616020 321119232040 642238464080
• Sum of all divisors σ(n): 1493221094586
• Sum of proper divisors (its aliquot sum) s(n): 850982630506
• 642238464080 is an abundant number, because the sum of its proper divisors (850982630506) is greater than itself. Its abundance is 208744166426

Bases of 642238464080

• Binary: 1001010110001000011001010100000001010000₂
• Hexadecimal: 0x9588654050
• Base-36: 871G76FK

Squares and roots of 642238464080

• 642238464080 squared (642238464080²) is 412470244743837450246400
• 642238464080 cubed (642238464080³) is 264904256462983857091431353549312000
• The square root of 642238464080 is 801397.8188640147
• The cube root of 642238464080 is 8627.7742039371

Scales and comparisons

• 642,238,464,080 seconds is equal to 20,421 years, 10 weeks, 1 day, 13 hours, 21 minutes, 20 seconds.
• To count from 1 to 642,238,464,080 would take you about forty thousand, eight hundred forty-two 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 642238464080 cubic inches would be around 719 feet tall.

Recreational maths with 642238464080

• 642238464080 backwards is 080464832246
• The number of decimal digits it has is: 12
• The sum of 642238464080's digits is 47
• More coming soon!