18998131

Names of 18998131

• Cardinal: 18998131 can be written as Eighteen million, nine hundred ninety-eight thousand, one hundred thirty-one.

Scientific notation

• Scientific notation: 1.8998131 × 10⁷

Factors of 18998131

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 12021

Divisors of 18998131

• Number of divisors d(n): 8
• Complete list of divisors:
  1 37 43 1591 11941 441817 513463 18998131
• Sum of all divisors σ(n): 19967024
• Sum of proper divisors (its aliquot sum) s(n): 968893
• 18998131 is a deficient number, because the sum of its proper divisors (968893) is less than itself. Its deficiency is 18029238

Bases of 18998131

• Binary: 1001000011110001101110011₂
• Hexadecimal: 0x121E373
• Base-36: BB71V

Squares and roots of 18998131

• 18998131 squared (18998131²) is 360928981493161
• 18998131 cubed (18998131³) is 6856976072103648282091
• The square root of 18998131 is 4358.6845492649
• The cube root of 18998131 is 266.8314150367

Scales and comparisons

• 18,998,131 seconds is equal to 31 weeks, 2 days, 21 hours, 15 minutes, 31 seconds.
• To count from 1 to 18,998,131 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 18998131 cubic inches would be around 22.2 feet tall.

Recreational maths with 18998131

• 18998131 backwards is 13189981
• The number of decimal digits it has is: 8
• The sum of 18998131's digits is 40
• More coming soon!