9899142

Names of 9899142

• Cardinal: 9899142 can be written as Nine million, eight hundred ninety-nine thousand, one hundred forty-two.

Scientific notation

• Scientific notation: 9.899142 × 10⁶

Factors of 9899142

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1324

Divisors of 9899142

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 6 11 22 33 66 127 254 381 762 1181 1397 2362 2794 3543 4191 7086 8382 12991 25982 38973 77946 149987 299974 449961 899922 1649857 3299714 4949571 9899142
• Sum of all divisors σ(n): 21786624
• Sum of proper divisors (its aliquot sum) s(n): 11887482
• 9899142 is an abundant number, because the sum of its proper divisors (11887482) is greater than itself. Its abundance is 1988340

Bases of 9899142

• Binary: 100101110000110010000110₂
• Hexadecimal: 0x970C86
• Base-36: 5W686

Squares and roots of 9899142

• 9899142 squared (9899142²) is 97993012336164
• 9899142 cubed (9899142³) is 970046744123439171288
• The square root of 9899142 is 3146.2901964061
• The cube root of 9899142 is 214.7167136161

Scales and comparisons

• 9,899,142 seconds is equal to 16 weeks, 2 days, 13 hours, 45 minutes, 42 seconds.
• To count from 1 to 9,899,142 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 9899142 cubic inches would be around 17.9 feet tall.

Recreational maths with 9899142

• 9899142 backwards is 2419989
• The number of decimal digits it has is: 7
• The sum of 9899142's digits is 42
• More coming soon!