18090901

Names of 18090901

• Cardinal: 18090901 can be written as Eighteen million, ninety thousand, nine hundred one.

Scientific notation

• Scientific notation: 1.8090901 × 10⁷

Factors of 18090901

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 18090901

Divisors of 18090901

• Number of divisors d(n): 2
• Complete list of divisors:
  1 18090901
• Sum of all divisors σ(n): 18090902
• Sum of proper divisors (its aliquot sum) s(n): 1
• 18090901 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 18090900

Bases of 18090901

• Binary: 1000101000000101110010101₂
• Hexadecimal: 0x1140B95
• Base-36: ARR11

Squares and roots of 18090901

• 18090901 squared (18090901²) is 327280698991801
• 18090901 cubed (18090901³) is 5920802724671471702701
• The square root of 18090901 is 4253.3399817085
• The cube root of 18090901 is 262.5145618529

Scales and comparisons

• 18,090,901 seconds is equal to 29 weeks, 6 days, 9 hours, 15 minutes, 1 second.
• To count from 1 to 18,090,901 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 18090901 cubic inches would be around 21.9 feet tall.

Recreational maths with 18090901

• 18090901 backwards is 10909081
• The number of decimal digits it has is: 8
• The sum of 18090901's digits is 28
• More coming soon!