18212613216

Names of 18212613216

• Cardinal: 18212613216 can be written as Eighteen billion, two hundred twelve million, six hundred thirteen thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 1.8212613216 × 10¹⁰

Factors of 18212613216

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 57866

Divisors of 18212613216

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 67 84 96 98 112 134 147 168 196 201 224 268 294 336 392 402 469 536 588 672 784 804 938 1072 1176 1407 1568 1608 1876 2144 2352 2814 3216 3283 3752 4704 5628 6432 6566 7504 9849 11256 13132 15008 19698 22512 26264 39396 45024 52528 57787 78792 105056 115574 157584 173361 231148 315168 346722 404509 462296 693444 809018 924592 1213527 1386888 1618036 1849184 2427054 2773776 2831563 3236072 3871729 4854108 5547552 5663126 6472144 7743458 8494689 9708216 11326252 11615187 12944288 15486916 16989378 19416432 22652504 23230374 27102103 30973832 33978756 38832864 45305008 46460748 54204206 61947664 67957512 81306309 90610016 92921496 108408412 123895328 135915024 162612618 185842992 189714721 216816824 271830048 325225236 371685984 379429442 433633648 569144163 650450472 758858884 867267296 1138288326 1300900944 1517717768 2276576652 2601801888 3035435536 4553153304 6070871072 9106306608 18212613216
• Sum of all divisors σ(n): 56444544576
• Sum of proper divisors (its aliquot sum) s(n): 38231931360
• 18212613216 is an abundant number, because the sum of its proper divisors (38231931360) is greater than itself. Its abundance is 20019318144

Bases of 18212613216

• Binary: 10000111101100011100110110001100000₂
• Hexadecimal: 0x43D8E6C60
• Base-36: 8D7BIAO

Squares and roots of 18212613216

• 18212613216 squared (18212613216²) is 331699280155617862656
• 18212613216 cubed (18212613216³) is 6041110693499892422054338461696
• The square root of 18212613216 is 134954.1152243977
• The cube root of 18212613216 is 2631.0196288393

Scales and comparisons

• 18,212,613,216 seconds is equal to 579 years, 5 weeks, 3 days, 3 hours, 13 minutes, 36 seconds.
• To count from 1 to 18,212,613,216 would take you about one thousand, one hundred fifty-eight 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 18212613216 cubic inches would be around 219.3 feet tall.

Recreational maths with 18212613216

• 18212613216 backwards is 61231621281
• The number of decimal digits it has is: 11
• The sum of 18212613216's digits is 33
• More coming soon!