9998642

Names of 9998642

• Cardinal: 9998642 can be written as Nine million, nine hundred ninety-eight thousand, six hundred forty-two.

Scientific notation

• Scientific notation: 9.998642 × 10⁶

Factors of 9998642

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 4999323

Divisors of 9998642

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 4999321 9998642
• Sum of all divisors σ(n): 14997966
• Sum of proper divisors (its aliquot sum) s(n): 4999324
• 9998642 is a deficient number, because the sum of its proper divisors (4999324) is less than itself. Its deficiency is 4999318

Bases of 9998642

• Binary: 100110001001000100110010₂
• Hexadecimal: 0x989132
• Base-36: 5YB02

Squares and roots of 9998642

• 9998642 squared (9998642²) is 99972841844164
• 9998642 cubed (9998642³) is 999592655322415625288
• The square root of 9998642 is 3162.0629342251
• The cube root of 9998642 is 215.4337161539

Scales and comparisons

• 9,998,642 seconds is equal to 16 weeks, 3 days, 17 hours, 24 minutes, 2 seconds.
• To count from 1 to 9,998,642 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 9998642 cubic inches would be around 18 feet tall.

Recreational maths with 9998642

• 9998642 backwards is 2468999
• The number of decimal digits it has is: 7
• The sum of 9998642's digits is 47
• More coming soon!