18189786994495488

Names of 18189786994495488

• Cardinal: 18189786994495488 can be written as Eighteen quadrillion, one hundred eighty-nine trillion, seven hundred eighty-six billion, nine hundred ninety-four million, four hundred ninety-five thousand, four hundred eighty-eight.

Scientific notation

• Scientific notation: 1.8189786994495488 × 10¹⁶

Factors of 18189786994495488

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 5484

Divisors of 18189786994495488

• Number of divisors d(n): 156
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 144 192 216 256 288 384 432 512 576 768 864 1024 1152 1536 1728 2048 2304 3072 3456 4096 4608 5479 6144 6912 9216 10958 12288 13824 16437 18432 21916 27648 32874 36864 43832 49311 55296 65748 87664 98622 110592 131496 147933 175328 197244 262992 295866 350656 394488 525984 591732 701312 788976 1051968 1183464 1402624 1577952 2103936 2366928 2805248 3155904 4207872 4733856 5610496 6311808 8415744 9467712 11220992 12623616 16831488 18935424 22441984 25247232 30019441 33662976 37870848 50494464 60038882 67325952 75741696 90058323 100988928 120077764 151483392 180116646 201977856 240155528 270174969 302966784 360233292 480311056 540349938 605933568 720466584 810524907 960622112 1080699876 1440933168 1621049814 1921244224 2161399752 2881866336 3242099628 3842488448 4322799504 5763732672 6484199256 7684976896 8645599008 11527465344 12968398512 15369953792 17291198016 23054930688 25936797024 30739907584 34582396032 46109861376 51873594048 61479815168 69164792064 92219722752 103747188096 122959630336 138329584128 184439445504 207494376192 276659168256 368878891008 414988752384 553318336512 829977504768 1106636673024 1659955009536 3319910019072
• Sum of all divisors σ(n): 18196304449592856
• Sum of proper divisors (its aliquot sum) s(n): 6517455097368
• 18189786994495488 is a deficient number, because the sum of its proper divisors (6517455097368) is less than itself. Its deficiency is 18183269539398120

Bases of 18189786994495488

• Binary: 1000000100111111000001111010000010110001101000000000000₂
• Hexadecimal: 0x409F83D058D000
• Base-36: 4Z3QOSA51C0

Squares and roots of 18189786994495488

• 18189786994495488 squared (18189786994495488²) is 330868350905117198392411652358144
• 18189786994495488 cubed (18189786994495488³) is 6018424826184070240817281892755276425982768054272
• The square root of 18189786994495488 is 134869518.4038835663
• 18189786994495488 is a perfect cube number. Its cube root is 262992

Scales and comparisons

• 18,189,786,994,495,488 seconds is equal to 578,378,961 years, 37 weeks, 2 days, 22 hours, 4 minutes, 48 seconds.
• To count from 1 to 18,189,786,994,495,488 would take you about one billion, seven hundred thirty-five million, one hundred thirty-six thousand, eight hundred eighty-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 18189786994495488 cubic inches would be around 21916 feet tall.

Recreational maths with 18189786994495488

• 18189786994495488 backwards is 88459449968798181
• 18189786994495488 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18189786994495488's digits is 108
• More coming soon!