18121833856

Names of 18121833856

• Cardinal: 18121833856 can be written as Eighteen billion, one hundred twenty-one million, eight hundred thirty-three thousand, eight hundred fifty-six.

Scientific notation

• Scientific notation: 1.8121833856 × 10¹⁰

Factors of 18121833856

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 7293

Divisors of 18121833856

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 392 421 448 784 842 896 1568 1684 2947 3136 3368 5894 6272 6736 6863 11788 13472 13726 20629 23576 26944 27452 41258 47152 48041 53888 54904 82516 94304 96082 109808 165032 188608 192164 219616 330064 336287 377216 384328 439232 660128 672574 768656 878464 1320256 1345148 1537312 2640512 2690296 2889323 3074624 5380592 5778646 6149248 10761184 11557292 20225261 21522368 23114584 40450522 43044736 46229168 80901044 92458336 141576827 161802088 184916672 283153654 323604176 369833344 566307308 647208352 1132614616 1294416704 2265229232 2588833408 4530458464 9060916928 18121833856
• Sum of all divisors σ(n): 42102197280
• Sum of proper divisors (its aliquot sum) s(n): 23980363424
• 18121833856 is an abundant number, because the sum of its proper divisors (23980363424) is greater than itself. Its abundance is 5858529568

Bases of 18121833856

• Binary: 10000111000001001010011110110000000₂
• Hexadecimal: 0x438253D80
• Base-36: 8BP9SHS

Squares and roots of 18121833856

• 18121833856 squared (18121833856²) is 328400862304467828736
• 18121833856 cubed (18121833856³) is 5951225864848699278850854486016
• The square root of 18121833856 is 134617.3609011855
• The cube root of 18121833856 is 2626.6409745509

Scales and comparisons

• 18,121,833,856 seconds is equal to 576 years, 11 weeks, 2 days, 10 hours, 44 minutes, 16 seconds.
• To count from 1 to 18,121,833,856 would take you about one thousand, one hundred fifty-two 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 18121833856 cubic inches would be around 218.9 feet tall.

Recreational maths with 18121833856

• 18121833856 backwards is 65833812181
• The number of decimal digits it has is: 11
• The sum of 18121833856's digits is 46
• More coming soon!