18490939

Names of 18490939

• Cardinal: 18490939 can be written as Eighteen million, four hundred ninety thousand, nine hundred thirty-nine.

Scientific notation

• Scientific notation: 1.8490939 × 10⁷

Factors of 18490939

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 18490939

Divisors of 18490939

• Number of divisors d(n): 2
• Complete list of divisors:
  1 18490939
• Sum of all divisors σ(n): 18490940
• Sum of proper divisors (its aliquot sum) s(n): 1
• 18490939 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 18490938

Bases of 18490939

• Binary: 1000110100010011000111011₂
• Hexadecimal: 0x11A263B
• Base-36: B0BP7

Squares and roots of 18490939

• 18490939 squared (18490939²) is 341914825101721
• 18490939 cubed (18490939³) is 6322326174151591806019
• The square root of 18490939 is 4300.1091846603
• The cube root of 18490939 is 264.4354374697

Scales and comparisons

• 18,490,939 seconds is equal to 30 weeks, 4 days, 22 minutes, 19 seconds.
• To count from 1 to 18,490,939 would take you about forty-five 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 18490939 cubic inches would be around 22 feet tall.

Recreational maths with 18490939

• 18490939 backwards is 93909481
• The number of decimal digits it has is: 8
• The sum of 18490939's digits is 43
• More coming soon!