18899913

Names of 18899913

• Cardinal: 18899913 can be written as Eighteen million, eight hundred ninety-nine thousand, nine hundred thirteen.

Scientific notation

• Scientific notation: 1.8899913 × 10⁷

Factors of 18899913

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 6583

Divisors of 18899913

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 1163 3489 5417 16251 6299971 18899913
• Sum of all divisors σ(n): 25226208
• Sum of proper divisors (its aliquot sum) s(n): 6326295
• 18899913 is a deficient number, because the sum of its proper divisors (6326295) is less than itself. Its deficiency is 12573618

Bases of 18899913

• Binary: 1001000000110001111001001₂
• Hexadecimal: 0x12063C9
• Base-36: B939L

Squares and roots of 18899913

• 18899913 squared (18899913²) is 357206711407569
• 18899913 cubed (18899913³) is 6751175768619161641497
• The square root of 18899913 is 4347.4030178947
• The cube root of 18899913 is 266.3707918045

Scales and comparisons

• 18,899,913 seconds is equal to 31 weeks, 1 day, 17 hours, 58 minutes, 33 seconds.
• To count from 1 to 18,899,913 would take you about forty-six 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 18899913 cubic inches would be around 22.2 feet tall.

Recreational maths with 18899913

• 18899913 backwards is 31999881
• The number of decimal digits it has is: 8
• The sum of 18899913's digits is 48
• More coming soon!