18321997386

Names of 18321997386

• Cardinal: 18321997386 can be written as Eighteen billion, three hundred twenty-one million, nine hundred ninety-seven thousand, three hundred eighty-six.

Scientific notation

• Scientific notation: 1.8321997386 × 10¹⁰

Factors of 18321997386

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 503

Divisors of 18321997386

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 6 7 11 14 21 22 23 33 42 46 49 66 69 77 98 121 138 147 154 161 231 242 253 294 322 343 363 457 462 483 506 539 686 726 759 847 914 966 1029 1078 1127 1371 1518 1617 1694 1771 2058 2254 2401 2541 2742 2783 3199 3234 3381 3542 3773 4802 5027 5082 5313 5566 5929 6398 6762 7203 7546 7889 8349 9597 10054 10511 10626 11319 11858 12397 14406 15081 15778 16698 17787 19194 19481 21022 22393 22638 23667 24794 26411 30162 31533 35189 35574 37191 38962 41503 44786 47334 52822 55223 55297 58443 63066 67179 70378 73577 74382 79233 83006 86779 105567 110446 110594 115621 116886 124509 134358 136367 147154 156751 158466 165669 165891 173558 211134 220731 231242 246323 249018 260337 272734 290521 313502 331338 331782 346863 387079 409101 441462 470253 492646 515039 520674 581042 607453 693726 738969 774158 809347 818202 871563 940506 954569 1030078 1097257 1161237 1214906 1271831 1477938 1545117 1618694 1724261 1743126 1822359 1909138 2194514 2322474 2428041 2543662 2709553 2863707 3090234 3291771 3448522 3605273 3644718 3815493 4856082 5172783 5419106 5665429 5727414 6583542 6681983 7210546 7630986 8128659 8902817 10345566 10815819 11330858 12069827 13363966 16257318 16996287 17805634 18966871 20045949 21631638 24139654 25236911 26708451 33992574 36209481 37933742 39658003 40091898 50473822 53416902 56900613 62319719 72418962 75710733 79316006 113801226 118974009 124639438 132768097 151421466 186959157 237948018 265536194 277606021 373918314 398304291 436238033 555212042 796608582 832818063 872476066 1308714099 1665636126 2617428198 3053666231 6107332462 9160998693 18321997386
• Sum of all divisors σ(n): 49138592832
• Sum of proper divisors (its aliquot sum) s(n): 30816595446
• 18321997386 is an abundant number, because the sum of its proper divisors (30816595446) is greater than itself. Its abundance is 12494598060

Bases of 18321997386

• Binary: 10001000100000100110111111001001010₂
• Hexadecimal: 0x444137E4A
• Base-36: 8F0FZNU

Squares and roots of 18321997386

• 18321997386 squared (18321997386²) is 335695588212590832996
• 18321997386 cubed (18321997386³) is 6150613689722821654440274548456
• The square root of 18321997386 is 135358.7728446145
• The cube root of 18321997386 is 2636.2763823955

Scales and comparisons

• 18,321,997,386 seconds is equal to 582 years, 30 weeks, 2 days, 3 hours, 43 minutes, 6 seconds.
• To count from 1 to 18,321,997,386 would take you about one thousand, one hundred sixty-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 18321997386 cubic inches would be around 219.7 feet tall.

Recreational maths with 18321997386

• 18321997386 backwards is 68379912381
• The number of decimal digits it has is: 11
• The sum of 18321997386's digits is 57
• More coming soon!