18179128900

Names of 18179128900

• Cardinal: 18179128900 can be written as Eighteen billion, one hundred seventy-nine million, one hundred twenty-eight thousand, nine hundred.

Scientific notation

• Scientific notation: 1.81791289 × 10¹⁰

Factors of 18179128900

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 243

Divisors of 18179128900

• Number of divisors d(n): 81
• Complete list of divisors:
  1 2 4 5 10 20 25 50 97 100 139 194 278 388 485 556 695 970 1390 1940 2425 2780 3475 4850 6950 9409 9700 13483 13900 18818 19321 26966 37636 38642 47045 53932 67415 77284 94090 96605 134830 188180 193210 235225 269660 337075 386420 470450 483025 674150 940900 966050 1307851 1348300 1874137 1932100 2615702 3748274 5231404 6539255 7496548 9370685 13078510 18741370 26157020 32696275 37482740 46853425 65392550 93706850 130785100 181791289 187413700 363582578 727165156 908956445 1817912890 3635825780 4544782225 9089564450 18179128900
• Sum of all divisors σ(n): 40148412759
• Sum of proper divisors (its aliquot sum) s(n): 21969283859
• 18179128900 is an abundant number, because the sum of its proper divisors (21969283859) is greater than itself. Its abundance is 3790154959

Bases of 18179128900

• Binary: 10000111011100011110111111001000100₂
• Hexadecimal: 0x43B8F7E44
• Base-36: 8CNDTMS

Squares and roots of 18179128900

• 18179128900 squared (18179128900²) is 330480727562815210000
• 18179128900 cubed (18179128900³) is 6007851745330200549470569000000
• 18179128900 is a perfect square number. Its square root is 134830
• The cube root of 18179128900 is 2629.4062426139

Scales and comparisons

• 18,179,128,900 seconds is equal to 578 years, 2 weeks, 14 hours, 1 minute, 40 seconds.
• To count from 1 to 18,179,128,900 would take you about one thousand, one hundred fifty-six 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 18179128900 cubic inches would be around 219.1 feet tall.

Recreational maths with 18179128900

• 18179128900 backwards is 00982197181
• The number of decimal digits it has is: 11
• The sum of 18179128900's digits is 46
• More coming soon!