18121940163616311

Names of 18121940163616311

• Cardinal: 18121940163616311 can be written as Eighteen quadrillion, one hundred twenty-one trillion, nine hundred forty billion, one hundred sixty-three million, six hundred sixteen thousand, three hundred eleven.

Scientific notation

• Scientific notation: 1.8121940163616311 × 10¹⁶

Factors of 18121940163616311

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 261873

Divisors of 18121940163616311

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 9 11 33 99 11987 35961 106543 107883 131857 143329 319629 395571 429987 958887 1171973 1186713 1289961 1576619 3515919 4729857 10547757 14189571 1277130941 1718084723 3831392823 5154254169 11494178469 14048440351 15270701647 15462762507 18898931953 42145321053 45812104941 56696795859 126435963159 137436314823 167977718117 170090387577 503933154351 1511799463053 183049900642589 549149701927767 1647449105783301 2013548907068479 6040646721205437 18121940163616311
• Sum of all divisors σ(n): 28558634024194560
• Sum of proper divisors (its aliquot sum) s(n): 10436693860578249
• 18121940163616311 is a deficient number, because the sum of its proper divisors (10436693860578249) is less than itself. Its deficiency is 7685246303038062

Bases of 18121940163616311

• Binary: 1000000011000011100111011111110000101111101111000110111₂
• Hexadecimal: 0x4061CEFE17DE37
• Base-36: 4YFOWDQSCVR

Squares and roots of 18121940163616311

• 18121940163616311 squared (18121940163616311²) is 328404715293689968696977225248721
• 18121940163616311 cubed (18121940163616311³) is 5951330600001700022687333713228697484951787488231
• The square root of 18121940163616311 is 134617755.7516701101
• The cube root of 18121940163616311 is 262664.6110738453

Scales and comparisons

• 18,121,940,163,616,311 seconds is equal to 576,221,642 years, 18 weeks, 5 days, 15 hours, 11 minutes, 51 seconds.
• To count from 1 to 18,121,940,163,616,311 would take you about one billion, seven hundred twenty-eight million, six hundred sixty-four thousand, nine hundred twenty-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 18121940163616311 cubic inches would be around 21888.7 feet tall.

Recreational maths with 18121940163616311

• 18121940163616311 backwards is 11361636104912181
• The number of decimal digits it has is: 17
• The sum of 18121940163616311's digits is 54
• More coming soon!