18021130

Names of 18021130

• Cardinal: 18021130 can be written as Eighteen million, twenty-one thousand, one hundred thirty.

Scientific notation

• Scientific notation: 1.802113 × 10⁷

Factors of 18021130

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1802120

Divisors of 18021130

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 1802113 3604226 9010565 18021130
• Sum of all divisors σ(n): 32438052
• Sum of proper divisors (its aliquot sum) s(n): 14416922
• 18021130 is a deficient number, because the sum of its proper divisors (14416922) is less than itself. Its deficiency is 3604208

Bases of 18021130

• Binary: 1000100101111101100001010₂
• Hexadecimal: 0x112FB0A
• Base-36: AQ96Y

Squares and roots of 18021130

• 18021130 squared (18021130²) is 324761126476900
• 18021130 cubed (18021130³) is 5852562479186656897000
• The square root of 18021130 is 4245.1301511261
• The cube root of 18021130 is 262.1766479603

Scales and comparisons

• 18,021,130 seconds is equal to 29 weeks, 5 days, 13 hours, 52 minutes, 10 seconds.
• To count from 1 to 18,021,130 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 18021130 cubic inches would be around 21.8 feet tall.

Recreational maths with 18021130

• 18021130 backwards is 03112081
• The number of decimal digits it has is: 8
• The sum of 18021130's digits is 16
• More coming soon!