18218023

Names of 18218023

• Cardinal: 18218023 can be written as Eighteen million, two hundred eighteen thousand and twenty-three.

Scientific notation

• Scientific notation: 1.8218023 × 10⁷

Factors of 18218023

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 4041

Divisors of 18218023

• Number of divisors d(n): 8
• Complete list of divisors:
  1 37 127 3877 4699 143449 492379 18218023
• Sum of all divisors σ(n): 18862592
• Sum of proper divisors (its aliquot sum) s(n): 644569
• 18218023 is a deficient number, because the sum of its proper divisors (644569) is less than itself. Its deficiency is 17573454

Bases of 18218023

• Binary: 1000101011111110000100111₂
• Hexadecimal: 0x115FC27
• Base-36: AUH47

Squares and roots of 18218023

• 18218023 squared (18218023²) is 331896362028529
• 18218023 cubed (18218023³) is 6046495557052067978167
• The square root of 18218023 is 4268.2576070337
• The cube root of 18218023 is 263.1280104711

Scales and comparisons

• 18,218,023 seconds is equal to 30 weeks, 20 hours, 33 minutes, 43 seconds.
• To count from 1 to 18,218,023 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 18218023 cubic inches would be around 21.9 feet tall.

Recreational maths with 18218023

• 18218023 backwards is 32081281
• The number of decimal digits it has is: 8
• The sum of 18218023's digits is 25
• More coming soon!