9990842

Names of 9990842

• Cardinal: 9990842 can be written as Nine million, nine hundred ninety thousand, eight hundred forty-two.

Scientific notation

• Scientific notation: 9.990842 × 10⁶

Factors of 9990842

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 4995423

Divisors of 9990842

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 4995421 9990842
• Sum of all divisors σ(n): 14986266
• Sum of proper divisors (its aliquot sum) s(n): 4995424
• 9990842 is a deficient number, because the sum of its proper divisors (4995424) is less than itself. Its deficiency is 4995418

Bases of 9990842

• Binary: 100110000111001010111010₂
• Hexadecimal: 0x9872BA
• Base-36: 5Y4ZE

Squares and roots of 9990842

• 9990842 squared (9990842²) is 99816923868964
• 9990842 cubed (9990842³) is 997255115300848027688
• The square root of 9990842 is 3160.8293215547
• The cube root of 9990842 is 215.3776812067

Scales and comparisons

• 9,990,842 seconds is equal to 16 weeks, 3 days, 15 hours, 14 minutes, 2 seconds.
• To count from 1 to 9,990,842 would take you about twenty-four weeks!

  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 9990842 cubic inches would be around 17.9 feet tall.

Recreational maths with 9990842

• 9990842 backwards is 2480999
• The number of decimal digits it has is: 7
• The sum of 9990842's digits is 41
• More coming soon!