18130031

Names of 18130031

• Cardinal: 18130031 can be written as Eighteen million, one hundred thirty thousand and thirty-one.

Scientific notation

• Scientific notation: 1.8130031 × 10⁷

Factors of 18130031

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 18130031

Divisors of 18130031

• Number of divisors d(n): 2
• Complete list of divisors:
  1 18130031
• Sum of all divisors σ(n): 18130032
• Sum of proper divisors (its aliquot sum) s(n): 1
• 18130031 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 18130030

Bases of 18130031

• Binary: 1000101001010010001101111₂
• Hexadecimal: 0x114A46F
• Base-36: ASL7Z

Squares and roots of 18130031

• 18130031 squared (18130031²) is 328698024060961
• 18130031 cubed (18130031³) is 5959305365863968819791
• The square root of 18130031 is 4257.9374114705
• The cube root of 18130031 is 262.7036955607

Scales and comparisons

• 18,130,031 seconds is equal to 29 weeks, 6 days, 20 hours, 7 minutes, 11 seconds.
• To count from 1 to 18,130,031 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 18130031 cubic inches would be around 21.9 feet tall.

Recreational maths with 18130031

• 18130031 backwards is 13003181
• 18130031 is a twin prime! Its twin is 18130033
• The number of decimal digits it has is: 8
• The sum of 18130031's digits is 17
• More coming soon!