18904468518

Names of 18904468518

• Cardinal: 18904468518 can be written as Eighteen billion, nine hundred four million, four hundred sixty-eight thousand, five hundred eighteen.

Scientific notation

• Scientific notation: 1.8904468518 × 10¹⁰

Factors of 18904468518

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 4091

Divisors of 18904468518

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 9 13 18 26 39 41 78 82 117 123 234 246 369 533 569 738 1066 1138 1599 1707 3198 3414 3463 4797 5121 6926 7397 9594 10242 10389 14794 20778 22191 23329 31167 44382 45019 46658 62334 66573 69987 90038 133146 135057 139974 141983 209961 270114 283966 303277 405171 419922 425949 606554 810342 851898 909831 1277847 1819662 1845779 1970447 2555694 2729493 3691558 3940894 5458986 5537337 5911341 11074674 11822682 16612011 17734023 25615811 33224022 35468046 51231622 76847433 80788327 153694866 161576654 230542299 242364981 461084598 484729962 727094943 1050248251 1454189886 2100496502 3150744753 6301489506 9452234259 18904468518
• Sum of all divisors σ(n): 45278775360
• Sum of proper divisors (its aliquot sum) s(n): 26374306842
• 18904468518 is an abundant number, because the sum of its proper divisors (26374306842) is greater than itself. Its abundance is 7469838324

Bases of 18904468518

• Binary: 10001100110110010110100110000100110₂
• Hexadecimal: 0x466CB4C26
• Base-36: 8ON8D9I

Squares and roots of 18904468518

• 18904468518 squared (18904468518²) is 357378929948053116324
• 18904468518 cubed (18904468518³) is 6756058730199497512938849887832
• The square root of 18904468518 is 137493.5217310255
• The cube root of 18904468518 is 2663.9219154061

Scales and comparisons

• 18,904,468,518 seconds is equal to 601 years, 5 weeks, 2 days, 17 hours, 15 minutes, 18 seconds.
• To count from 1 to 18,904,468,518 would take you about one thousand, two hundred 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 18904468518 cubic inches would be around 222 feet tall.

Recreational maths with 18904468518

• 18904468518 backwards is 81586440981
• The number of decimal digits it has is: 11
• The sum of 18904468518's digits is 54
• More coming soon!