18037991354391168

Names of 18037991354391168

• Cardinal: 18037991354391168 can be written as Eighteen quadrillion, thirty-seven trillion, nine hundred ninety-one billion, three hundred fifty-four million, three hundred ninety-one thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8037991354391168 × 10¹⁶

Factors of 18037991354391168

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1515288252253

Divisors of 18037991354391168

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 31 32 48 62 64 93 96 124 128 186 192 248 372 384 496 744 992 1488 1984 2976 3968 5952 11904 1515288252217 3030576504434 4545864756651 6061153008868 9091729513302 12122306017736 18183459026604 24244612035472 36366918053208 46973935818727 48489224070944 72733836106416 93947871637454 96978448141888 140921807456181 145467672212832 187895743274908 193956896283776 281843614912362 290935344425664 375791486549816 563687229824724 581870688851328 751582973099632 1127374459649448 1503165946199264 2254748919298896 3006331892398528 4509497838597792 6012663784797056 9018995677195584 18037991354391168
• Sum of all divisors σ(n): 49459008552395520
• Sum of proper divisors (its aliquot sum) s(n): 31421017198004352
• 18037991354391168 is an abundant number, because the sum of its proper divisors (31421017198004352) is greater than itself. Its abundance is 13383025843613184

Bases of 18037991354391168

• Binary: 1000000000101010111010100100011001000111101101010000000₂
• Hexadecimal: 0x4015752323DA80
• Base-36: 4XLXMTX9OQO

Squares and roots of 18037991354391168

• 18037991354391168 squared (18037991354391168²) is 325369132101090523320075956404224
• 18037991354391168 cubed (18037991354391168³) is 5869005591825228706284584854068740912794023493632
• The square root of 18037991354391168 is 134305589.4383817819
• The cube root of 18037991354391168 is 262258.3904364747

Scales and comparisons

• 18,037,991,354,391,168 seconds is equal to 573,552,329 years, 46 weeks, 5 days, 5 hours, 32 minutes, 48 seconds.
• To count from 1 to 18,037,991,354,391,168 would take you about one billion, seven hundred twenty million, six hundred fifty-six thousand, nine hundred eighty-nine 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 18037991354391168 cubic inches would be around 21854.9 feet tall.

Recreational maths with 18037991354391168

• 18037991354391168 backwards is 86119345319973081
• The number of decimal digits it has is: 17
• The sum of 18037991354391168's digits is 78
• More coming soon!