18964138876918800

Names of 18964138876918800

• Cardinal: 18964138876918800 can be written as Eighteen quadrillion, nine hundred sixty-four trillion, one hundred thirty-eight billion, eight hundred seventy-six million, nine hundred eighteen thousand, eight hundred.

Scientific notation

• Scientific notation: 1.89641388769188 × 10¹⁶

Factors of 18964138876918800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 421384174

Divisors of 18964138876918800

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 150 200 240 300 400 600 1200 37507 75014 112521 150028 187535 225042 300056 375070 450084 562605 600112 750140 900168 937675 1125210 1500280 1800336 1875350 2250420 2813025 3000560 3750700 4500840 5626050 7501400 9001680 11252100 15002800 22504200 45008400 421346657 842693314 1264039971 1685386628 2106733285 2528079942 3370773256 4213466570 5056159884 6320199855 6741546512 8426933140 10112319768 10533666425 12640399710 16853866280 20224639536 21067332850 25280799420 31600999275 33707732560 42134665700 50561598840 63201998550 84269331400 101123197680 126403997100 168538662800 252807994200 505615988400 15803449064099 31606898128198 47410347192297 63213796256396 79017245320495 94820694384594 126427592512792 158034490640990 189641388769188 237051735961485 252855185025584 316068981281980 379282777538376 395086226602475 474103471922970 632137962563960 758565555076752 790172453204950 948206943845940 1185258679807425 1264275925127920 1580344906409900 1896413887691880 2370517359614850 3160689812819800 3792827775383760 4741034719229700 6321379625639600 9482069438459400 18964138876918800
• Sum of all divisors σ(n): 60750078003126816
• Sum of proper divisors (its aliquot sum) s(n): 41785939126208016
• 18964138876918800 is an abundant number, because the sum of its proper divisors (41785939126208016) is greater than itself. Its abundance is 22821800249289216

Bases of 18964138876918800

• Binary: 1000011010111111100100010101001001110101101110000010000₂
• Hexadecimal: 0x435FC8A93ADC10
• Base-36: 56Q854NRF2O

Squares and roots of 18964138876918800

• 18964138876918800 squared (18964138876918800²) is 359638563343063044975381793440000
• 18964138876918800 cubed (18964138876918800³) is 6820235660733406328136180657641486565252672000000
• The square root of 18964138876918800 is 137710344.1173494417
• The cube root of 18964138876918800 is 266672.1786494015

Scales and comparisons

• 18,964,138,876,918,800 seconds is equal to 603,000,956 years, 18 weeks, 2 days, 11 hours, 40 minutes.
• To count from 1 to 18,964,138,876,918,800 would take you about one billion, eight hundred nine million, two thousand, eight 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 18964138876918800 cubic inches would be around 22222.7 feet tall.

Recreational maths with 18964138876918800

• 18964138876918800 backwards is 00881967883146981
• The number of decimal digits it has is: 17
• The sum of 18964138876918800's digits is 87
• More coming soon!