18738137165049

Names of 18738137165049

• Cardinal: 18738137165049 can be written as Eighteen trillion, seven hundred thirty-eight billion, one hundred thirty-seven million, one hundred sixty-five thousand and forty-nine.

Scientific notation

• Scientific notation: 1.8738137165049 × 10¹³

Factors of 18738137165049

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2869

Divisors of 18738137165049

• Number of divisors d(n): 45
• Complete list of divisors:
  1 3 9 27 81 179 537 1611 2687 4833 8061 14499 24183 32041 72549 96123 217647 288369 480973 865107 1442919 2595321 4328757 7219969 12986271 21659907 38958813 64979721 86094167 194939163 258282501 584817489 774847503 1292374451 2324542509 3877123353 6973627527 11631370059 34894110177 104682330531 231335026729 694005080187 2082015240561 6246045721683 18738137165049
• Sum of all divisors σ(n): 28159268974837
• Sum of proper divisors (its aliquot sum) s(n): 9421131809788
• 18738137165049 is a deficient number, because the sum of its proper divisors (9421131809788) is less than itself. Its deficiency is 9317005355261

Bases of 18738137165049

• Binary: 100010000101011010000000000100110110011111001₂
• Hexadecimal: 0x110AD0026CF9
• Base-36: 6N46J2AK9

Squares and roots of 18738137165049

• 18738137165049 squared (18738137165049²) is 351117784416190574667172401
• 18738137165049 cubed (18738137165049³) is 6579293205478683206330044010799074612649
• 18738137165049 is a perfect square number. Its square root is 4328757
• The cube root of 18738137165049 is 26560.8603172447

Scales and comparisons

• 18,738,137,165,049 seconds is equal to 595,814 years, 41 weeks, 4 days, 13 hours, 24 minutes, 9 seconds.
• To count from 1 to 18,738,137,165,049 would take you about one million, four hundred eighty-nine thousand, five hundred thirty-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 18738137165049 cubic inches would be around 2213.4 feet tall.

Recreational maths with 18738137165049

• 18738137165049 backwards is 94056173183781
• The number of decimal digits it has is: 14
• The sum of 18738137165049's digits is 63
• More coming soon!