18121231296

Names of 18121231296

• Cardinal: 18121231296 can be written as Eighteen billion, one hundred twenty-one million, two hundred thirty-one thousand, two hundred ninety-six.

Scientific notation

• Scientific notation: 1.8121231296 × 10¹⁰

Factors of 18121231296

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 121518

Divisors of 18121231296

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 37 42 48 56 63 64 72 74 84 96 111 112 126 144 148 168 192 222 224 252 259 288 296 333 336 444 448 504 518 576 592 666 672 777 888 1008 1036 1184 1332 1344 1554 1776 2016 2072 2331 2368 2664 3108 3552 4032 4144 4662 5328 6216 7104 8288 9324 10656 12432 16576 18648 21312 24864 37296 49728 74592 121469 149184 242938 364407 485876 728814 850283 971752 1093221 1457628 1700566 1943504 2186442 2550849 2915256 3401132 3887008 4372884 4494353 5101698 5830512 6802264 7652547 7774016 8745768 8988706 10203396 11661024 13483059 13604528 15305094 17491536 17977412 20406792 23322048 26966118 27209056 30610188 31460471 34983072 35954824 40449177 40813584 53932236 54418112 61220376 62920942 69966144 71909648 80898354 81627168 94381413 107864472 122440752 125841884 143819296 161796708 163254336 188762826 215728944 244881504 251683768 283144239 287638592 323593416 377525652 431457888 489763008 503367536 566288478 647186832 755051304 862915776 1006735072 1132576956 1294373664 1510102608 2013470144 2265153912 2588747328 3020205216 4530307824 6040410432 9060615648 18121231296
• Sum of all divisors σ(n): 60966278880
• Sum of proper divisors (its aliquot sum) s(n): 42845047584
• 18121231296 is an abundant number, because the sum of its proper divisors (42845047584) is greater than itself. Its abundance is 24723816288

Bases of 18121231296

• Binary: 10000111000000111000000101111000000₂
• Hexadecimal: 0x4381C0BC0
• Base-36: 8BOWVK0

Squares and roots of 18121231296

• 18121231296 squared (18121231296²) is 328379023683129839616
• 18121231296 cubed (18121231296³) is 5950632240916657636880919822336
• The square root of 18121231296 is 134615.1228354377
• The cube root of 18121231296 is 2626.6118618551

Scales and comparisons

• 18,121,231,296 seconds is equal to 576 years, 10 weeks, 2 days, 11 hours, 21 minutes, 36 seconds.
• To count from 1 to 18,121,231,296 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 18121231296 cubic inches would be around 218.9 feet tall.

Recreational maths with 18121231296

• 18121231296 backwards is 69213212181
• 18121231296 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18121231296's digits is 36
• More coming soon!