18092021

Names of 18092021

• Cardinal: 18092021 can be written as Eighteen million, ninety-two thousand and twenty-one.

Scientific notation

• Scientific notation: 1.8092021 × 10⁷

Factors of 18092021

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 14550

Divisors of 18092021

• Number of divisors d(n): 4
• Complete list of divisors:
  1 1373 13177 18092021
• Sum of all divisors σ(n): 18106572
• Sum of proper divisors (its aliquot sum) s(n): 14551
• 18092021 is a deficient number, because the sum of its proper divisors (14551) is less than itself. Its deficiency is 18077470

Bases of 18092021

• Binary: 1000101000000111111110101₂
• Hexadecimal: 0x1140FF5
• Base-36: ARRW5

Squares and roots of 18092021

• 18092021 squared (18092021²) is 327321223864441
• 18092021 cubed (18092021³) is 5921902455901167725261
• The square root of 18092021 is 4253.4716409067
• The cube root of 18092021 is 262.5199791293

Scales and comparisons

• 18,092,021 seconds is equal to 29 weeks, 6 days, 9 hours, 33 minutes, 41 seconds.
• To count from 1 to 18,092,021 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 18092021 cubic inches would be around 21.9 feet tall.

Recreational maths with 18092021

• 18092021 backwards is 12029081
• The number of decimal digits it has is: 8
• The sum of 18092021's digits is 23
• More coming soon!