18209094309

Names of 18209094309

• Cardinal: 18209094309 can be written as Eighteen billion, two hundred nine million, ninety-four thousand, three hundred nine.

Scientific notation

• Scientific notation: 1.8209094309 × 10¹⁰

Factors of 18209094309

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 108

Divisors of 18209094309

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 9 21 31 63 67 93 201 217 279 469 603 651 961 1407 1953 2077 2883 4221 4489 6231 6727 8649 13467 14539 18693 20181 31423 40401 43617 60543 64387 94269 130851 139159 193161 282807 300763 417477 450709 579483 902289 974113 1252431 1352127 2105341 2706867 2922339 4056381 4313929 6316023 8767017 9323653 12941787 18948069 27970959 30197503 38825361 65265571 83912877 90592509 195796713 271777527 289033243 587390139 867099729 2023232701 2601299187 6069698103 18209094309
• Sum of all divisors σ(n): 31531007040
• Sum of proper divisors (its aliquot sum) s(n): 13321912731
• 18209094309 is a deficient number, because the sum of its proper divisors (13321912731) is less than itself. Its deficiency is 4887181578

Bases of 18209094309

• Binary: 10000111101010110001011101010100101₂
• Hexadecimal: 0x43D58BAA5
• Base-36: 8D58339

Squares and roots of 18209094309

• 18209094309 squared (18209094309²) is 331571115554056187481
• 18209094309 cubed (18209094309³) is 6037609713264145905326514145629
• The square root of 18209094309 is 134941.0771744467
• The cube root of 18209094309 is 2630.8501691795

Scales and comparisons

• 18,209,094,309 seconds is equal to 578 years, 51 weeks, 4 days, 9 hours, 45 minutes, 9 seconds.
• To count from 1 to 18,209,094,309 would take you about one thousand, one hundred fifty-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 18209094309 cubic inches would be around 219.2 feet tall.

Recreational maths with 18209094309

• 18209094309 backwards is 90349090281
• The number of decimal digits it has is: 11
• The sum of 18209094309's digits is 45
• More coming soon!