18999208368

Names of 18999208368

• Cardinal: 18999208368 can be written as Eighteen billion, nine hundred ninety-nine million, two hundred eight thousand, three hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8999208368 × 10¹⁰

Factors of 18999208368

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 8238

Divisors of 18999208368

• Number of divisors d(n): 200
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 48 54 56 63 72 81 84 108 112 126 144 162 168 189 216 252 263 324 336 378 432 504 526 567 648 756 789 1008 1052 1134 1296 1512 1578 1841 2104 2268 2367 3024 3156 3682 4208 4536 4734 5523 6312 7101 7364 7963 9072 9468 11046 12624 14202 14728 15926 16569 18936 21303 22092 23889 28404 29456 31852 33138 37872 42606 44184 47778 49707 55741 56808 63704 66276 71667 85212 88368 95556 99414 111482 113616 127408 132552 143334 149121 167223 170424 191112 198828 215001 222964 265104 286668 298242 334446 340848 382224 397656 430002 445928 501669 573336 596484 645003 668892 795312 860004 891856 1003338 1146672 1192968 1290006 1337784 1505007 1720008 2006676 2094269 2385936 2580012 2675568 3010014 3440016 4013352 4188538 4515021 5160024 6020028 6282807 8026704 8377076 9030042 10320048 12040056 12565614 14659883 16754152 18060084 18848421 24080112 25131228 29319766 33508304 36120168 37696842 43979649 50262456 56545263 58639532 72240336 75393684 87959298 100524912 113090526 117279064 131938947 150787368 169635789 175918596 226181052 234558128 263877894 301574736 339271578 351837192 395816841 452362104 527755788 678543156 703674384 791633682 904724208 1055511576 1187450523 1357086312 1583267364 2111023152 2374901046 2714172624 3166534728 4749802092 6333069456 9499604184 18999208368
• Sum of all divisors σ(n): 63091699968
• Sum of proper divisors (its aliquot sum) s(n): 44092491600
• 18999208368 is an abundant number, because the sum of its proper divisors (44092491600) is greater than itself. Its abundance is 25093283232

Bases of 18999208368

• Binary: 10001101100011100001110100110110000₂
• Hexadecimal: 0x46C70E9B0
• Base-36: 8Q7MZ00

Squares and roots of 18999208368

• 18999208368 squared (18999208368²) is 360969918610681223424
• 18999208368 cubed (18999208368³) is 6858142698264333634257738412032
• The square root of 18999208368 is 137837.6159399167
• The cube root of 18999208368 is 2668.3645886961

Scales and comparisons

• 18,999,208,368 seconds is equal to 604 years, 6 weeks, 5 hours, 52 minutes, 48 seconds.
• To count from 1 to 18,999,208,368 would take you about one thousand, two hundred eight 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 18999208368 cubic inches would be around 222.4 feet tall.

Recreational maths with 18999208368

• 18999208368 backwards is 86380299981
• 18999208368 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18999208368's digits is 63
• More coming soon!