18172802643982873713728

Names of 18172802643982873713728

• Cardinal: 18172802643982873713728 can be written as Eighteen sextillion, one hundred seventy-two quintillion, eight hundred two quadrillion, six hundred forty-three trillion, nine hundred eighty-two billion, eight hundred seventy-three million, seven hundred thirteen thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8172802643982873713728 × 10²²

Factors of 18172802643982873713728

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 597536

Divisors of 18172802643982873713728

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 4 8 11 16 22 32 44 64 88 121 176 242 352 484 704 968 1331 1936 2662 3872 5324 7744 10648 21296 42592 85184 597523 1195046 2390092 4780184 6572753 9560368 13145506 19120736 26291012 38241472 52582024 72300283 105164048 144600566 210328096 289201132 420656192 578402264 795303113 1156804528 1590606226 2313609056 3181212452 4627218112 6362424904 12724849808 25449699616 50899399232 357033735529 714067471058 1428134942116 2856269884232 3927371090819 5712539768464 7854742181638 11425079536928 15709484363276 22850159073856 31418968726552 43201081999009 62837937453104 86402163998018 125675874906208 172804327996036 251351749812416 345608655992072 475211901989099 691217311984144 950423803978198 1382434623968288 1900847607956396 2764869247936576 3801695215912792 7603390431825584 15206780863651168 30413561727302336
• Sum of all divisors σ(n): 18172838613100622289576
• Sum of proper divisors (its aliquot sum) s(n): 35969117748575848
• 18172802643982873713728 is a deficient number, because the sum of its proper divisors (35969117748575848) is less than itself. Its deficiency is 18172766674865125137880

Bases of 18172802643982873713728

• Binary: 11110110010010011001001100100010010001000101000110101110101101110001000000₂
• Hexadecimal: 0x3D9264C891146BADC40
• Base-36: 2YJ8FNL4Z2Y71A8

Squares and roots of 18172802643982873713728

• 18172802643982873713728 squared (18172802643982873713728²) is 330250755937150925495108888303345470495657984
• 18172802643982873713728 cubed (18172802643982873713728³) is 6001581810671999067676837764036838262112022635251886527633013604352
• The square root of 18172802643982873713728 is 134806537838.4256025017
• 18172802643982873713728 is a perfect cube number. Its cube root is 26291012

Scales and comparisons

• 18,172,802,643,982,873,713,728 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 18,172,802,643,982,873,713,728 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and 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 18172802643982873713728 cubic inches would be around 2190917.7 feet tall.

Recreational maths with 18172802643982873713728

• 18172802643982873713728 backwards is 82731737828934620827181
• The number of decimal digits it has is: 23
• The sum of 18172802643982873713728's digits is 107
• More coming soon!