18156083985

Names of 18156083985

• Cardinal: 18156083985 can be written as Eighteen billion, one hundred fifty-six million, eighty-three thousand, nine hundred eighty-five.

Scientific notation

• Scientific notation: 1.8156083985 × 10¹⁰

Factors of 18156083985

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 640

Divisors of 18156083985

• Number of divisors d(n): 84
• Complete list of divisors:
  1 3 5 9 13 15 27 39 45 65 81 117 135 195 243 351 405 585 619 729 1053 1215 1755 1857 3095 3159 3645 5265 5571 8047 9285 9477 15795 16713 24141 27855 40235 47385 50139 72423 83565 120705 150417 217269 250695 362115 383161 451251 651807 752085 1086345 1149483 1915805 1955421 2256255 3259035 3448449 4981093 5747415 5866263 9777105 10345347 14943279 17242245 24905465 29331315 31036041 44829837 51726735 74716395 93108123 134489511 155180205 224149185 279324369 403468533 465540615 672447555 1210405599 1396621845 2017342665 3631216797 6052027995 18156083985
• Sum of all divisors σ(n): 35235701172
• Sum of proper divisors (its aliquot sum) s(n): 17079617187
• 18156083985 is a deficient number, because the sum of its proper divisors (17079617187) is less than itself. Its deficiency is 1076466798

Bases of 18156083985

• Binary: 10000111010001011111101101100010001₂
• Hexadecimal: 0x43A2FDB11
• Base-36: 8C9NW29

Squares and roots of 18156083985

• 18156083985 squared (18156083985²) is 329643385670373480225
• 18156083985 cubed (18156083985³) is 5985032995331046433281836696625
• The square root of 18156083985 is 134744.5137473137
• The cube root of 18156083985 is 2628.2947103343

Scales and comparisons

• 18,156,083,985 seconds is equal to 577 years, 15 weeks, 6 days, 20 hours, 39 minutes, 45 seconds.
• To count from 1 to 18,156,083,985 would take you about one thousand, one hundred fifty-four 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 18156083985 cubic inches would be around 219 feet tall.

Recreational maths with 18156083985

• 18156083985 backwards is 58938065181
• The number of decimal digits it has is: 11
• The sum of 18156083985's digits is 54
• More coming soon!