18009998841856

Names of 18009998841856

• Cardinal: 18009998841856 can be written as Eighteen trillion, nine billion, nine hundred ninety-eight million, eight hundred forty-one thousand, eight hundred fifty-six.

Scientific notation

• Scientific notation: 1.8009998841856 × 10¹³

Factors of 18009998841856

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 1307301

Divisors of 18009998841856

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 7 8 14 16 28 31 32 56 62 64 112 124 128 217 224 248 256 434 448 496 512 868 896 961 992 1024 1736 1792 1922 1984 2048 3472 3584 3844 3968 6727 6944 7168 7688 7936 13454 13888 14336 15376 15872 26908 27776 30752 31744 53816 55552 61504 63488 107632 111104 123008 215264 222208 246016 430528 444416 492032 861056 984064 1307261 1722112 1968128 2614522 3444224 5229044 6888448 9150827 10458088 13776896 18301654 20916176 36603308 40525091 41832352 73206616 81050182 83664704 146413232 162100364 167329408 283675637 292826464 324200728 334658816 567351274 585652928 648401456 669317632 1134702548 1171305856 1256277821 1296802912 1338635264 2269405096 2342611712 2512555642 2593605824 2677270528 4538810192 4685223424 5025111284 5187211648 8793944747 9077620384 9370446848 10050222568 10374423296 17587889494 18155240768 18740893696 20100445136 20748846592 35175778988 36310481536 40200890272 41497693184 70351557976 72620963072 80401780544 82995386368 140703115952 145241926144 160803561088 281406231904 290483852288 321607122176 562812463808 580967704576 643214244352 1125624927616 1286428488704 2251249855232 2572856977408 4502499710464 9004999420928 18009998841856
• Sum of all divisors σ(n): 42526121798160
• Sum of proper divisors (its aliquot sum) s(n): 24516122956304
• 18009998841856 is an abundant number, because the sum of its proper divisors (24516122956304) is greater than itself. Its abundance is 6506124114448

Bases of 18009998841856

• Binary: 100000110000101000111100101010101100000000000₂
• Hexadecimal: 0x106147955800
• Base-36: 6DTOGB0N4

Squares and roots of 18009998841856

• 18009998841856 squared (18009998841856²) is 324360058283654461297524736
• 18009998841856 cubed (18009998841856³) is 5841724274032961507103708070399512150016
• The square root of 18009998841856 is 4243818.8983339053
• The cube root of 18009998841856 is 26212.2657065599

Scales and comparisons

• 18,009,998,841,856 seconds is equal to 572,662 years, 13 weeks, 1 day, 16 hours, 4 minutes, 16 seconds.
• To count from 1 to 18,009,998,841,856 would take you about one million, four hundred thirty-one thousand, six hundred fifty-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 18009998841856 cubic inches would be around 2184.4 feet tall.

Recreational maths with 18009998841856

• 18009998841856 backwards is 65814889990081
• The number of decimal digits it has is: 14
• The sum of 18009998841856's digits is 76
• More coming soon!