18039470

Names of 18039470

• Cardinal: 18039470 can be written as Eighteen million, thirty-nine thousand, four hundred seventy.

Scientific notation

• Scientific notation: 1.803947 × 10⁷

Factors of 18039470

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1803954

Divisors of 18039470

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 1803947 3607894 9019735 18039470
• Sum of all divisors σ(n): 32471064
• Sum of proper divisors (its aliquot sum) s(n): 14431594
• 18039470 is a deficient number, because the sum of its proper divisors (14431594) is less than itself. Its deficiency is 3607876

Bases of 18039470

• Binary: 1000100110100001010101110₂
• Hexadecimal: 0x11342AE
• Base-36: AQNCE

Squares and roots of 18039470

• 18039470 squared (18039470²) is 325422477880900
• 18039470 cubed (18039470³) is 5870449027058159123000
• The square root of 18039470 is 4247.2897240475
• The cube root of 18039470 is 262.2655563605

Scales and comparisons

• 18,039,470 seconds is equal to 29 weeks, 5 days, 18 hours, 57 minutes, 50 seconds.
• To count from 1 to 18,039,470 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 18039470 cubic inches would be around 21.9 feet tall.

Recreational maths with 18039470

• 18039470 backwards is 07493081
• The number of decimal digits it has is: 8
• The sum of 18039470's digits is 32
• More coming soon!