18225690

Names of 18225690

• Cardinal: 18225690 can be written as Eighteen million, two hundred twenty-five thousand, six hundred ninety.

Scientific notation

• Scientific notation: 1.822569 × 10⁷

Factors of 18225690

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1547

Divisors of 18225690

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 7 10 14 15 21 30 35 42 59 70 105 118 177 210 295 354 413 590 826 885 1239 1471 1770 2065 2478 2942 4130 4413 6195 7355 8826 10297 12390 14710 20594 22065 30891 44130 51485 61782 86789 102970 154455 173578 260367 308910 433945 520734 607523 867890 1215046 1301835 1822569 2603670 3037615 3645138 6075230 9112845 18225690
• Sum of all divisors σ(n): 50872320
• Sum of proper divisors (its aliquot sum) s(n): 32646630
• 18225690 is an abundant number, because the sum of its proper divisors (32646630) is greater than itself. Its abundance is 14420940

Bases of 18225690

• Binary: 1000101100001101000011010₂
• Hexadecimal: 0x1161A1A
• Base-36: AUN16

Squares and roots of 18225690

• 18225690 squared (18225690²) is 332175775976100
• 18225690 cubed (18225690³) is 6054132718449846009000
• The square root of 18225690 is 4269.1556542249
• The cube root of 18225690 is 263.1649175039

Scales and comparisons

• 18,225,690 seconds is equal to 30 weeks, 22 hours, 41 minutes, 30 seconds.
• To count from 1 to 18,225,690 would take you about forty-five 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 18225690 cubic inches would be around 21.9 feet tall.

Recreational maths with 18225690

• 18225690 backwards is 09652281
• The number of decimal digits it has is: 8
• The sum of 18225690's digits is 33
• More coming soon!