18119648656640

Names of 18119648656640

• Cardinal: 18119648656640 can be written as Eighteen trillion, one hundred nineteen billion, six hundred forty-eight million, six hundred fifty-six thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.811964865664 × 10¹³

Factors of 18119648656640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 14659

Divisors of 18119648656640

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1019 1280 2038 4076 5095 8152 10190 13633 16304 20380 27266 32608 40760 54532 65216 68165 81520 109064 130432 136330 163040 218128 260864 272660 326080 436256 545320 652160 872512 1038361 1090640 1304320 1745024 2076722 2181280 3490048 4153444 4362560 5191805 8306888 8725120 10383610 13892027 16613776 17450240 20767220 27784054 33227552 41534440 55568108 66455104 69460135 83068880 111136216 132910208 138920270 166137760 222272432 265820416 277840540 332275520 444544864 555681080 664551040 889089728 1111362160 1329102080 1778179456 2222724320 3556358912 4445448640 8890897280 14155975513 17781794560 28311951026 56623902052 70779877565 113247804104 141559755130 226495608208 283119510260 452991216416 566239020520 905982432832 1132478041040 1811964865664 2264956082080 3623929731328 4529912164160 9059824328320 18119648656640
• Sum of all divisors σ(n): 43448042418564
• Sum of proper divisors (its aliquot sum) s(n): 25328393761924
• 18119648656640 is an abundant number, because the sum of its proper divisors (25328393761924) is greater than itself. Its abundance is 7208745105284

Bases of 18119648656640

• Binary: 100000111101011001111001110001011110100000000₂
• Hexadecimal: 0x107ACF38BD00
• Base-36: 6F81UZ37K

Squares and roots of 18119648656640

• 18119648656640 squared (18119648656640²) is 328321667440075756616089600
• 18119648656640 cubed (18119648656640³) is 5949073260376373511068559512849874944000
• The square root of 18119648656640 is 4256718.0616808531
• The cube root of 18119648656640 is 26265.3539353509

Scales and comparisons

• 18,119,648,656,640 seconds is equal to 576,148 years, 40 weeks, 3 days, 17 hours, 57 minutes, 20 seconds.
• To count from 1 to 18,119,648,656,640 would take you about one million, four hundred forty thousand, three hundred seventy-one 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 18119648656640 cubic inches would be around 2188.8 feet tall.

Recreational maths with 18119648656640

• 18119648656640 backwards is 04665684691181
• The number of decimal digits it has is: 14
• The sum of 18119648656640's digits is 65
• More coming soon!