18198090165987

Names of 18198090165987

• Cardinal: 18198090165987 can be written as Eighteen trillion, one hundred ninety-eight billion, ninety million, one hundred sixty-five thousand, nine hundred eighty-seven.

Scientific notation

• Scientific notation: 1.8198090165987 × 10¹³

Factors of 18198090165987

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 87

Divisors of 18198090165987

• Number of divisors d(n): 100
• Complete list of divisors:
  1 3 9 27 41 43 81 123 129 369 387 1107 1161 1681 1763 1849 3321 3483 5043 5289 5547 15129 15867 16641 45387 47601 49923 68921 72283 75809 79507 136161 142803 149769 206763 216849 227427 238521 620289 650547 682281 715563 1860867 1951641 2046843 2146689 2825761 2963603 3108169 3259787 5582601 5854923 6140529 6440067 8477283 8890809 9324507 9779361 25431849 26672427 27973521 29338083 76295547 80017281 83920563 88014249 121507723 127434929 133651267 228886641 240051843 251761689 264042747 364523169 382304787 400953801 1093569507 1146914361 1202861403 3280708521 3440743083 3608584209 5224832089 5479701947 9842125563 10322229249 10825752627 15674496267 16439105841 47023488801 49317317523 141070466403 147951952569 224667779827 423211399209 443855857707 674003339481 2022010018443 6066030055329 18198090165987
• Sum of all divisors σ(n): 28527851407000
• Sum of proper divisors (its aliquot sum) s(n): 10329761241013
• 18198090165987 is a deficient number, because the sum of its proper divisors (10329761241013) is less than itself. Its deficiency is 7868328924974

Bases of 18198090165987

• Binary: 100001000110100010010101100110010111011100011₂
• Hexadecimal: 0x108D12B32EE3
• Base-36: 6G8350V6R

Squares and roots of 18198090165987

• 18198090165987 squared (18198090165987²) is 331170485689392757211684169
• 18198090165987 cubed (18198090165987³) is 6026670358889276849211613150333030159803
• The square root of 18198090165987 is 4265921.9596690937
• The cube root of 18198090165987 is 26303.2010281575

Scales and comparisons

• 18,198,090,165,987 seconds is equal to 578,642 years, 50 weeks, 5 days, 14 hours, 6 minutes, 27 seconds.
• To count from 1 to 18,198,090,165,987 would take you about one million, four hundred forty-six thousand, six hundred 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 18198090165987 cubic inches would be around 2191.9 feet tall.

Recreational maths with 18198090165987

• 18198090165987 backwards is 78956109089181
• The number of decimal digits it has is: 14
• The sum of 18198090165987's digits is 72
• More coming soon!