18216505816992

Names of 18216505816992

• Cardinal: 18216505816992 can be written as Eighteen trillion, two hundred sixteen billion, five hundred five million, eight hundred sixteen thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 1.8216505816992 × 10¹³

Factors of 18216505816992

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 9035965199

Divisors of 18216505816992

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 72 84 96 112 126 144 168 224 252 288 336 504 672 1008 2016 9035965187 18071930374 27107895561 36143860748 54215791122 63251756309 72287721496 81323686683 108431582244 126503512618 144575442992 162647373366 189755268927 216863164488 253007025236 289150885984 325294746732 379510537854 433726328976 506014050472 569265806781 650589493464 759021075708 867452657952 1012028100944 1138531613562 1301178986928 1518042151416 2024056201888 2277063227124 2602357973856 3036084302832 4554126454248 6072168605664 9108252908496 18216505816992
• Sum of all divisors σ(n): 59203643911776
• Sum of proper divisors (its aliquot sum) s(n): 40987138094784
• 18216505816992 is an abundant number, because the sum of its proper divisors (40987138094784) is greater than itself. Its abundance is 22770632277792

Bases of 18216505816992

• Binary: 100001001000101011100010110111011011110100000₂
• Hexadecimal: 0x10915C5BB7A0
• Base-36: 6GGJP86G0

Squares and roots of 18216505816992

• 18216505816992 squared (18216505816992²) is 331841084180503373395928064
• 18216505816992 cubed (18216505816992³) is 6044985040291071650781602594982380863488
• The square root of 18216505816992 is 4268079.8747202471
• The cube root of 18216505816992 is 26312.0705901827

Scales and comparisons

• 18,216,505,816,992 seconds is equal to 579,228 years, 27 weeks, 6 days, 16 hours, 43 minutes, 12 seconds.
• To count from 1 to 18,216,505,816,992 would take you about one million, four hundred forty-eight thousand and 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 18216505816992 cubic inches would be around 2192.7 feet tall.

Recreational maths with 18216505816992

• 18216505816992 backwards is 29961850561281
• 18216505816992 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18216505816992's digits is 63
• More coming soon!