18678144732

Names of 18678144732

• Cardinal: 18678144732 can be written as Eighteen billion, six hundred seventy-eight million, one hundred forty-four thousand, seven hundred thirty-two.

Scientific notation

• Scientific notation: 1.8678144732 × 10¹⁰

Factors of 18678144732

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 7043076

Divisors of 18678144732

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 12 13 17 26 34 39 51 52 68 78 102 156 204 221 442 663 884 1326 2652 7043041 14086082 21129123 28172164 42258246 84516492 91559533 119731697 183119066 239463394 274678599 359195091 366238132 478926788 549357198 718390182 1098714396 1436780364 1556512061 3113024122 4669536183 6226048244 9339072366 18678144732
• Sum of all divisors σ(n): 49695704352
• Sum of proper divisors (its aliquot sum) s(n): 31017559620
• 18678144732 is an abundant number, because the sum of its proper divisors (31017559620) is greater than itself. Its abundance is 12339414888

Bases of 18678144732

• Binary: 10001011001010011011101111011011100₂
• Hexadecimal: 0x4594DDEDC
• Base-36: 8KWHGPO

Squares and roots of 18678144732

• 18678144732 squared (18678144732²) is 348873090629539351824
• 18678144732 cubed (18678144732³) is 6516302079878689007858140191168
• The square root of 18678144732 is 136668.0091755199
• The cube root of 18678144732 is 2653.2484067003

Scales and comparisons

• 18,678,144,732 seconds is equal to 593 years, 47 weeks, 1 day, 5 hours, 32 minutes, 12 seconds.
• To count from 1 to 18,678,144,732 would take you about one thousand, one hundred eighty-seven 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 18678144732 cubic inches would be around 221.1 feet tall.

Recreational maths with 18678144732

• 18678144732 backwards is 23744187681
• 18678144732 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18678144732's digits is 51
• More coming soon!