168018363939787218

Names of 168018363939787218

• Cardinal: 168018363939787218 can be written as One hundred sixty-eight quadrillion, eighteen trillion, three hundred sixty-three billion, nine hundred thirty-nine million, seven hundred eighty-seven thousand, two hundred eighteen.

Scientific notation

• Scientific notation: 1.68018363939787218 × 10¹⁷

Factors of 168018363939787218

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 65275199665836

Divisors of 168018363939787218

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 6 9 11 13 18 22 26 33 39 66 78 99 117 143 198 234 286 429 858 1287 2574 65275199665807 130550399331614 195825598997421 391651197994842 587476796992263 718027196323877 848577595655491 1174953593984526 1436054392647754 1697155191310982 2154081588971631 2545732786966473 4308163177943262 5091465573932946 6462244766914893 7637198360899419 9334353552210401 12924489533829786 15274396721798838 18668707104420802 28003060656631203 56006121313262406 84009181969893609 168018363939787218
• Sum of all divisors σ(n): 427683108210374016
• Sum of proper divisors (its aliquot sum) s(n): 259664744270586798
• 168018363939787218 is an abundant number, because the sum of its proper divisors (259664744270586798) is greater than itself. Its abundance is 91646380330799580

Bases of 168018363939787218

• Binary: 1001010100111010111100111111010010010111111001000111010010₂
• Hexadecimal: 0x254EBCFD25F91D2
• Base-36: 19YDJETK5BKI

Squares and roots of 168018363939787218

• 168018363939787218 squared (168018363939787218²) is 28230170621002789756568283116179524
• 168018363939787218 cubed (168018363939787218³) is 4743187081481935664909315582465226453389937648524232
• The square root of 168018363939787218 is 409900431.7389617217
• The cube root of 168018363939787218 is 551804.9395903215

Scales and comparisons

• 168,018,363,939,787,218 seconds is equal to 5,342,464,258 years, 18 weeks, 5 days, 20 hours, 18 seconds.
• To count from 1 to 168,018,363,939,787,218 would take you about sixteen billion, twenty-seven million, three hundred ninety-two thousand, seven hundred seventy-five 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 168018363939787218 cubic inches would be around 45983.7 feet tall.

Recreational maths with 168018363939787218

• 168018363939787218 backwards is 812787939363810861
• The number of decimal digits it has is: 18
• The sum of 168018363939787218's digits is 90
• More coming soon!