18989443

Names of 18989443

• Cardinal: 18989443 can be written as Eighteen million, nine hundred eighty-nine thousand, four hundred forty-three.

Scientific notation

• Scientific notation: 1.8989443 × 10⁷

Factors of 18989443

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 1726324

Divisors of 18989443

• Number of divisors d(n): 4
• Complete list of divisors:
  1 11 1726313 18989443
• Sum of all divisors σ(n): 20715768
• Sum of proper divisors (its aliquot sum) s(n): 1726325
• 18989443 is a deficient number, because the sum of its proper divisors (1726325) is less than itself. Its deficiency is 17263118

Bases of 18989443

• Binary: 1001000011100000110000011₂
• Hexadecimal: 0x121C183
• Base-36: BB0CJ

Squares and roots of 18989443

• 18989443 squared (18989443²) is 360598945450249
• 18989443 cubed (18989443³) is 6847573120487612721307
• The square root of 18989443 is 4357.6878043293
• The cube root of 18989443 is 266.7907341085

Scales and comparisons

• 18,989,443 seconds is equal to 31 weeks, 2 days, 18 hours, 50 minutes, 43 seconds.
• To count from 1 to 18,989,443 would take you about forty-seven 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 18989443 cubic inches would be around 22.2 feet tall.

Recreational maths with 18989443

• 18989443 backwards is 34498981
• The number of decimal digits it has is: 8
• The sum of 18989443's digits is 46
• More coming soon!