9009009009

Names of 9009009009

• Cardinal: 9009009009 can be written as Nine billion, nine million, nine thousand and nine.

Scientific notation

• Scientific notation: 9.009009009 × 10⁹

Factors of 9009009009

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 10036

Divisors of 9009009009

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 11 13 21 33 39 63 77 91 99 101 117 143 231 273 303 429 693 707 819 909 1001 1111 1287 1313 2121 3003 3333 3939 6363 7777 9009 9191 9901 9999 11817 14443 23331 27573 29703 43329 69307 69993 82719 89109 101101 108911 128713 129987 207921 303303 326733 386139 623763 762377 900991 909909 980199 1000001 1158417 1415843 2287131 2702973 3000003 4247529 6861393 7000007 8108919 9000009 9910901 11000011 12742587 13000013 21000021 29732703 33000033 39000039 63000063 77000077 89198109 91000091 99000099 117000117 143000143 231000231 273000273 429000429 693000693 819000819 1001001001 1287001287 3003003003 9009009009
• Sum of all divisors σ(n): 17646789888
• Sum of proper divisors (its aliquot sum) s(n): 8637780879
• 9009009009 is a deficient number, because the sum of its proper divisors (8637780879) is less than itself. Its deficiency is 371228130

Bases of 9009009009

• Binary: 1000011000111110101001000101110001₂
• Hexadecimal: 0x218FA9171
• Base-36: 44ZQBU9

Squares and roots of 9009009009

• 9009009009 squared (9009009009²) is 81162243324243162081
• 9009009009 cubed (9009009009³) is 731191381298756755294376187729
• The square root of 9009009009 is 94915.7995752025
• The cube root of 9009009009 is 2080.7776469263

Scales and comparisons

• 9,009,009,009 seconds is equal to 286 years, 23 weeks, 5 days, 22 hours, 30 minutes, 9 seconds.
• To count from 1 to 9,009,009,009 would take you about five hundred seventy-two years!

  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 9009009009 cubic inches would be around 173.4 feet tall.

Recreational maths with 9009009009

• 9009009009 is the same when its digits are reversed! That makes it a palindromic number.
• The number of decimal digits it has is: 10
• The sum of 9009009009's digits is 36
• More coming soon!