18133889

Names of 18133889

• Cardinal: 18133889 can be written as Eighteen million, one hundred thirty-three thousand, eight hundred eighty-nine.

Scientific notation

• Scientific notation: 1.8133889 × 10⁷

Factors of 18133889

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 18133889

Divisors of 18133889

• Number of divisors d(n): 2
• Complete list of divisors:
  1 18133889
• Sum of all divisors σ(n): 18133890
• Sum of proper divisors (its aliquot sum) s(n): 1
• 18133889 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 18133888

Bases of 18133889

• Binary: 1000101001011001110000001₂
• Hexadecimal: 0x114B381
• Base-36: ASO75

Squares and roots of 18133889

• 18133889 squared (18133889²) is 328837930264321
• 18133889 cubed (18133889³) is 5963110526402937674369
• The square root of 18133889 is 4258.3904236225
• The cube root of 18133889 is 262.7223283469

Scales and comparisons

• 18,133,889 seconds is equal to 29 weeks, 6 days, 21 hours, 11 minutes, 29 seconds.
• To count from 1 to 18,133,889 would take you about forty-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 18133889 cubic inches would be around 21.9 feet tall.

Recreational maths with 18133889

• 18133889 backwards is 98833181
• 18133889 is a twin prime! Its twin is 18133891
• The number of decimal digits it has is: 8
• The sum of 18133889's digits is 41
• More coming soon!