18420640091009

Names of 18420640091009

• Cardinal: 18420640091009 can be written as Eighteen trillion, four hundred twenty billion, six hundred forty million, ninety-one thousand and nine.

Scientific notation

• Scientific notation: 1.8420640091009 × 10¹³

Factors of 18420640091009

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5158

Divisors of 18420640091009

• Number of divisors d(n): 96
• Complete list of divisors:
  1 13 17 19 169 221 241 247 307 323 2873 3133 3211 3991 4097 4199 4561 4579 5219 5833 40729 51883 53261 54587 59293 59527 67847 73987 75829 77537 77843 86659 99161 692393 770809 773851 882011 961831 985777 1007981 1011959 1099201 1126567 1257779 1289093 1400227 1405753 1473203 12503803 13103753 13155467 14289613 14645371 16351127 16758209 18202951 18274789 18686417 19151639 20884819 23803859 23897801 26604313 185764969 212564651 236638363 237572257 242923421 248971307 271502647 309450167 310671413 337454707 345856069 355041923 452273321 3158004473 3529534411 4022852171 4038728369 4386911191 4496128897 4615544999 5736730019 5879553173 6411639433 57029845483 60002084987 74577490247 76434191249 83351312629 108997870361 969507373211 1083567064177 1416972314693 18420640091009
• Sum of all divisors σ(n): 22401389324160
• Sum of proper divisors (its aliquot sum) s(n): 3980749233151
• 18420640091009 is a deficient number, because the sum of its proper divisors (3980749233151) is less than itself. Its deficiency is 14439890857858

Bases of 18420640091009

• Binary: 100001100000011100011101101011000101110000001₂
• Hexadecimal: 0x10C0E3B58B81
• Base-36: 6J2BPI4CH

Squares and roots of 18420640091009

• 18420640091009 squared (18420640091009²) is 339319981362488059802638081
• 18420640091009 cubed (18420640091009³) is 6250491252366274237741542974970129113729
• The square root of 18420640091009 is 4291927.3166036957
• The cube root of 18420640091009 is 26409.9901408121

Scales and comparisons

• 18,420,640,091,009 seconds is equal to 585,719 years, 19 weeks, 3 days, 21 hours, 43 minutes, 29 seconds.
• To count from 1 to 18,420,640,091,009 would take you about one million, four hundred sixty-four thousand, two hundred ninety-eight 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 18420640091009 cubic inches would be around 2200.8 feet tall.

Recreational maths with 18420640091009

• 18420640091009 backwards is 90019004602481
• The number of decimal digits it has is: 14
• The sum of 18420640091009's digits is 44
• More coming soon!