18289459216

Names of 18289459216

• Cardinal: 18289459216 can be written as Eighteen billion, two hundred eighty-nine million, four hundred fifty-nine thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 1.8289459216 × 10¹⁰

Factors of 18289459216

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2754

Divisors of 18289459216

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 7 8 14 16 28 56 112 181 362 421 724 842 1267 1448 1684 2143 2534 2896 2947 3368 4286 5068 5894 6736 8572 10136 11788 15001 17144 20272 23576 30002 34288 47152 60004 76201 120008 152402 240016 304804 387883 533407 609608 775766 902203 1066814 1219216 1551532 1804406 2133628 2715181 3103064 3608812 4267256 5430362 6206128 6315421 7217624 8534512 10860724 12630842 14435248 21721448 25261684 43442896 50523368 101046736 163298743 326597486 653194972 1143091201 1306389944 2286182402 2612779888 4572364804 9144729608 18289459216
• Sum of all divisors σ(n): 40837608448
• Sum of proper divisors (its aliquot sum) s(n): 22548149232
• 18289459216 is an abundant number, because the sum of its proper divisors (22548149232) is greater than itself. Its abundance is 4258690016

Bases of 18289459216

• Binary: 10001000010001000110000000000010000₂
• Hexadecimal: 0x442230010
• Base-36: 8EH2L1S

Squares and roots of 18289459216

• 18289459216 squared (18289459216²) is 334504318413727334656
• 18289459216 cubed (18289459216³) is 6117903089203743901735295389696
• The square root of 18289459216 is 135238.5271141327
• The cube root of 18289459216 is 2634.7148634493

Scales and comparisons

• 18,289,459,216 seconds is equal to 581 years, 28 weeks, 3 days, 13 hours, 20 minutes, 16 seconds.
• To count from 1 to 18,289,459,216 would take you about one thousand, one hundred sixty-three 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 18289459216 cubic inches would be around 219.6 feet tall.

Recreational maths with 18289459216

• 18289459216 backwards is 61295498281
• The number of decimal digits it has is: 11
• The sum of 18289459216's digits is 55
• More coming soon!