18099081

Names of 18099081

• Cardinal: 18099081 can be written as Eighteen million, ninety-nine thousand and eighty-one.

Scientific notation

• Scientific notation: 1.8099081 × 10⁷

Factors of 18099081

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 75

Divisors of 18099081

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 11 13 21 33 39 41 49 63 77 91 99 117 123 143 147 231 273 287 343 369 429 441 451 533 539 637 693 819 861 1001 1029 1287 1353 1599 1617 1911 2009 2583 3003 3087 3157 3731 3773 4059 4459 4797 4851 5733 5863 6027 7007 9009 9471 11193 11319 13377 14063 17589 18081 21021 22099 26117 28413 33579 33957 40131 41041 42189 49049 52767 63063 66297 78351 123123 126567 147147 154693 182819 198891 235053 287287 369369 441441 464079 548457 861861 1392237 1645371 2011009 2585583 6033027 18099081
• Sum of all divisors σ(n): 36691200
• Sum of proper divisors (its aliquot sum) s(n): 18592119
• 18099081 is an abundant number, because the sum of its proper divisors (18592119) is greater than itself. Its abundance is 493038

Bases of 18099081

• Binary: 1000101000010101110001001₂
• Hexadecimal: 0x1142B89
• Base-36: ARXC9

Squares and roots of 18099081

• 18099081 squared (18099081²) is 327576733044561
• 18099081 cubed (18099081³) is 5928837825088886148441
• The square root of 18099081 is 4254.3014702769
• The cube root of 18099081 is 262.5541221737

Scales and comparisons

• 18,099,081 seconds is equal to 29 weeks, 6 days, 11 hours, 31 minutes, 21 seconds.
• To count from 1 to 18,099,081 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 18099081 cubic inches would be around 21.9 feet tall.

Recreational maths with 18099081

• 18099081 is the same when its digits are reversed! That makes it a palindromic number.
• The number of decimal digits it has is: 8
• The sum of 18099081's digits is 36
• More coming soon!