18884138

Names of 18884138

• Cardinal: 18884138 can be written as Eighteen million, eight hundred eighty-four thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 1.8884138 × 10⁷

Factors of 18884138

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 211

Divisors of 18884138

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 7 13 14 19 26 38 43 86 91 127 133 182 247 254 266 301 494 559 602 817 889 1118 1634 1651 1729 1778 2413 3302 3458 3913 4826 5461 5719 7826 10621 10922 11438 11557 16891 21242 23114 31369 33782 38227 62738 70993 74347 76454 103759 141986 148694 207518 219583 439166 496951 726313 993902 1348867 1452626 2697734 9442069 18884138
• Sum of all divisors σ(n): 37847040
• Sum of proper divisors (its aliquot sum) s(n): 18962902
• 18884138 is an abundant number, because the sum of its proper divisors (18962902) is greater than itself. Its abundance is 78764

Bases of 18884138

• Binary: 1001000000010011000101010₂
• Hexadecimal: 0x120262A
• Base-36: B8R3E

Squares and roots of 18884138

• 18884138 squared (18884138²) is 356610668003044
• 18884138 cubed (18884138³) is 6734285066841667316072
• The square root of 18884138 is 4345.5883376131
• The cube root of 18884138 is 266.2966615009

Scales and comparisons

• 18,884,138 seconds is equal to 31 weeks, 1 day, 13 hours, 35 minutes, 38 seconds.
• To count from 1 to 18,884,138 would take you about forty-six 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 18884138 cubic inches would be around 22.2 feet tall.

Recreational maths with 18884138

• 18884138 backwards is 83148881
• The number of decimal digits it has is: 8
• The sum of 18884138's digits is 41
• More coming soon!