18138888797598864

Names of 18138888797598864

• Cardinal: 18138888797598864 can be written as Eighteen quadrillion, one hundred thirty-eight trillion, eight hundred eighty-eight billion, seven hundred ninety-seven million, five hundred ninety-eight thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 1.8138888797598864 × 10¹⁶

Factors of 18138888797598864

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 7597

Divisors of 18138888797598864

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 2011 4022 5581 6033 8044 11162 12066 16088 16743 18099 22324 24132 32176 33486 36198 44648 48264 50229 66972 72396 89296 96528 100458 133944 144792 200916 267888 289584 401832 803664 11223391 22446782 31147561 33670173 44893564 62295122 67340346 89787128 93442683 101010519 124590244 134680692 179574256 186885366 202021038 249180488 269361384 280328049 373770732 404042076 498360976 538722768 560656098 747541464 808084152 1121312196 1495082928 1616168304 2242624392 4485248784 62637745171 125275490342 187913235513 250550980684 375826471026 501101961368 563739706539 751652942052 1002203922736 1127479413078 1503305884104 2254958826156 3006611768208 4509917652312 9019835304624
• Sum of all divisors σ(n): 18155129052151788
• Sum of proper divisors (its aliquot sum) s(n): 16240254552924
• 18138888797598864 is a deficient number, because the sum of its proper divisors (16240254552924) is less than itself. Its deficiency is 18122648543045940

Bases of 18138888797598864

• Binary: 1000000011100010011100100100111011001101011010010010000₂
• Hexadecimal: 0x4071392766B490
• Base-36: 4YLP6H5UYS0

Squares and roots of 18138888797598864

• 18138888797598864 squared (18138888797598864²) is 329019286811657562210411854090496
• 18138888797598864 cubed (18138888797598864³) is 5968044255741943010355946631253672603161362796544
• 18138888797598864 is a perfect square number. Its square root is 134680692
• The cube root of 18138888797598864 is 262746.4716836141

Scales and comparisons

• 18,138,888,797,598,864 seconds is equal to 576,760,556 years, 25 weeks, 5 days, 19 hours, 14 minutes, 24 seconds.
• To count from 1 to 18,138,888,797,598,864 would take you about one billion, seven hundred thirty million, two hundred eighty-one thousand, six hundred sixty-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 18138888797598864 cubic inches would be around 21895.5 feet tall.

Recreational maths with 18138888797598864

• 18138888797598864 backwards is 46889579788883181
• The number of decimal digits it has is: 17
• The sum of 18138888797598864's digits is 108
• More coming soon!