18118135

Names of 18118135

• Cardinal: 18118135 can be written as Eighteen million, one hundred eighteen thousand, one hundred thirty-five.

Scientific notation

• Scientific notation: 1.8118135 × 10⁷

Factors of 18118135

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 423

Divisors of 18118135

• Number of divisors d(n): 32
• Complete list of divisors:
  1 5 7 23 35 71 115 161 317 355 497 805 1585 1633 2219 2485 7291 8165 11095 11431 22507 36455 51037 57155 112535 157549 255185 517661 787745 2588305 3623627 18118135
• Sum of all divisors σ(n): 26376192
• Sum of proper divisors (its aliquot sum) s(n): 8258057
• 18118135 is a deficient number, because the sum of its proper divisors (8258057) is less than itself. Its deficiency is 9860078

Bases of 18118135

• Binary: 1000101000111010111110111₂
• Hexadecimal: 0x11475F7
• Base-36: ASC1J

Squares and roots of 18118135

• 18118135 squared (18118135²) is 328266815878225
• 18118135 cubed (18118135³) is 5947582486101824110375
• The square root of 18118135 is 4256.5402617619
• The cube root of 18118135 is 262.6462254085

Scales and comparisons

• 18,118,135 seconds is equal to 29 weeks, 6 days, 16 hours, 48 minutes, 55 seconds.
• To count from 1 to 18,118,135 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 18118135 cubic inches would be around 21.9 feet tall.

Recreational maths with 18118135

• 18118135 backwards is 53181181
• The number of decimal digits it has is: 8
• The sum of 18118135's digits is 28
• More coming soon!