16421918

Names of 16421918

• Cardinal: 16421918 can be written as Sixteen million, four hundred twenty-one thousand, nine hundred eighteen.

Scientific notation

• Scientific notation: 1.6421918 × 10⁷

Factors of 16421918

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 10146

Divisors of 16421918

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 887 1774 9257 18514 8210959 16421918
• Sum of all divisors σ(n): 24663312
• Sum of proper divisors (its aliquot sum) s(n): 8241394
• 16421918 is a deficient number, because the sum of its proper divisors (8241394) is less than itself. Its deficiency is 8180524

Bases of 16421918

• Binary: 111110101001010000011110₂
• Hexadecimal: 0xFA941E
• Base-36: 9RZ8E

Squares and roots of 16421918

• 16421918 squared (16421918²) is 269679390798724
• 16421918 cubed (16421918³) is 4428652841986600032632
• The square root of 16421918 is 4052.3965748679
• The cube root of 16421918 is 254.1799518391

Scales and comparisons

• 16,421,918 seconds is equal to 27 weeks, 1 day, 1 hour, 38 minutes, 38 seconds.
• To count from 1 to 16,421,918 would take you about forty 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 16421918 cubic inches would be around 21.2 feet tall.

Recreational maths with 16421918

• 16421918 backwards is 81912461
• The number of decimal digits it has is: 8
• The sum of 16421918's digits is 32
• More coming soon!