18999398

Names of 18999398

• Cardinal: 18999398 can be written as Eighteen million, nine hundred ninety-nine thousand, three hundred ninety-eight.

Scientific notation

• Scientific notation: 1.8999398 × 10⁷

Factors of 18999398

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 863622

Divisors of 18999398

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 11 22 863609 1727218 9499699 18999398
• Sum of all divisors σ(n): 31089960
• Sum of proper divisors (its aliquot sum) s(n): 12090562
• 18999398 is a deficient number, because the sum of its proper divisors (12090562) is less than itself. Its deficiency is 6908836

Bases of 18999398

• Binary: 1001000011110100001100110₂
• Hexadecimal: 0x121E866
• Base-36: BB812

Squares and roots of 18999398

• 18999398 squared (18999398²) is 360977124362404
• 18999398 cubed (18999398³) is 6858348054656809832792
• The square root of 18999398 is 4358.8298888575
• The cube root of 18999398 is 266.8373466355

Scales and comparisons

• 18,999,398 seconds is equal to 31 weeks, 2 days, 21 hours, 36 minutes, 38 seconds.
• To count from 1 to 18,999,398 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 18999398 cubic inches would be around 22.2 feet tall.

Recreational maths with 18999398

• 18999398 backwards is 89399981
• The number of decimal digits it has is: 8
• The sum of 18999398's digits is 56
• More coming soon!