18057978

Names of 18057978

• Cardinal: 18057978 can be written as Eighteen million, fifty-seven thousand, nine hundred seventy-eight.

Scientific notation

• Scientific notation: 1.8057978 × 10⁷

Factors of 18057978

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 184

Divisors of 18057978

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 6 9 17 18 27 34 51 54 79 81 83 102 153 158 162 166 237 249 306 459 474 498 711 747 918 1343 1377 1411 1422 1494 2133 2241 2686 2754 2822 4029 4233 4266 4482 6399 6557 6723 8058 8466 12087 12699 12798 13114 13446 19671 24174 25398 36261 38097 39342 59013 72522 76194 108783 111469 114291 118026 177039 217566 222938 228582 334407 354078 531117 668814 1003221 1062234 2006442 3009663 6019326 9028989 18057978
• Sum of all divisors σ(n): 43908480
• Sum of proper divisors (its aliquot sum) s(n): 25850502
• 18057978 is an abundant number, because the sum of its proper divisors (25850502) is greater than itself. Its abundance is 7792524

Bases of 18057978

• Binary: 1000100111000101011111010₂
• Hexadecimal: 0x1138AFA
• Base-36: AR1MI

Squares and roots of 18057978

• 18057978 squared (18057978²) is 326090569448484
• 18057978 cubed (18057978³) is 5888536329108196205352
• The square root of 18057978 is 4249.4679666989
• The cube root of 18057978 is 262.3552181193

Scales and comparisons

• 18,057,978 seconds is equal to 29 weeks, 6 days, 6 minutes, 18 seconds.
• To count from 1 to 18,057,978 would take you about forty-four weeks!

  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 18057978 cubic inches would be around 21.9 feet tall.

Recreational maths with 18057978

• 18057978 backwards is 87975081
• The number of decimal digits it has is: 8
• The sum of 18057978's digits is 45
• More coming soon!