18418218

Names of 18418218

• Cardinal: 18418218 can be written as Eighteen million, four hundred eighteen thousand, two hundred eighteen.

Scientific notation

• Scientific notation: 1.8418218 × 10⁷

Factors of 18418218

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 165

Divisors of 18418218

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 7 13 14 21 26 39 42 49 61 78 79 91 98 122 147 158 182 183 237 273 294 366 427 474 546 553 637 793 854 1027 1106 1274 1281 1586 1659 1911 2054 2379 2562 2989 3081 3318 3822 3871 4758 4819 5551 5978 6162 7189 7742 8967 9638 11102 11613 14378 14457 16653 17934 21567 23226 28914 33306 33733 38857 43134 50323 62647 67466 77714 100646 101199 116571 125294 150969 187941 202398 233142 236131 301938 375882 438529 472262 708393 877058 1315587 1416786 2631174 3069703 6139406 9209109 18418218
• Sum of all divisors σ(n): 47496960
• Sum of proper divisors (its aliquot sum) s(n): 29078742
• 18418218 is an abundant number, because the sum of its proper divisors (29078742) is greater than itself. Its abundance is 10660524

Bases of 18418218

• Binary: 1000110010000101000101010₂
• Hexadecimal: 0x1190A2A
• Base-36: AYRL6

Squares and roots of 18418218

• 18418218 squared (18418218²) is 339230754295524
• 18418218 cubed (18418218³) is 6248025984919397456232
• The square root of 18418218 is 4291.6451391045
• The cube root of 18418218 is 264.0883255883

Scales and comparisons

• 18,418,218 seconds is equal to 30 weeks, 3 days, 4 hours, 10 minutes, 18 seconds.
• To count from 1 to 18,418,218 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 18418218 cubic inches would be around 22 feet tall.

Recreational maths with 18418218

• 18418218 backwards is 81281481
• The number of decimal digits it has is: 8
• The sum of 18418218's digits is 33
• More coming soon!