18600138

Names of 18600138

• Cardinal: 18600138 can be written as Eighteen million, six hundred thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 1.8600138 × 10⁷

Factors of 18600138

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 222

Divisors of 18600138

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 9 18 27 53 54 67 97 106 134 159 194 201 291 318 402 477 582 603 873 954 1206 1431 1746 1809 2619 2862 3551 3618 5141 5238 6499 7102 10282 10653 12998 15423 19497 21306 30846 31959 38994 46269 58491 63918 92538 95877 116982 138807 175473 191754 277614 344447 350946 688894 1033341 2066682 3100023 6200046 9300069 18600138
• Sum of all divisors σ(n): 43182720
• Sum of proper divisors (its aliquot sum) s(n): 24582582
• 18600138 is an abundant number, because the sum of its proper divisors (24582582) is greater than itself. Its abundance is 5982444

Bases of 18600138

• Binary: 1000110111101000011001010₂
• Hexadecimal: 0x11BD0CA
• Base-36: B2NYI

Squares and roots of 18600138

• 18600138 squared (18600138²) is 345965133619044
• 18600138 cubed (18600138³) is 6434999228502657828072
• The square root of 18600138 is 4312.7877295321
• The cube root of 18600138 is 264.9549608991

Scales and comparisons

• 18,600,138 seconds is equal to 30 weeks, 5 days, 6 hours, 42 minutes, 18 seconds.
• To count from 1 to 18,600,138 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 18600138 cubic inches would be around 22.1 feet tall.

Recreational maths with 18600138

• 18600138 backwards is 83100681
• 18600138 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 18600138's digits is 27
• More coming soon!