388830

Names of 388830

• Cardinal: 388830 can be written as Three hundred eighty-eight thousand, eight hundred thirty.

Scientific notation

• Scientific notation: 3.8883 × 10⁵

Factors of 388830

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1020

Divisors of 388830

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 997 1994 2991 4985 5982 9970 12961 14955 25922 29910 38883 64805 77766 129610 194415 388830
• Sum of all divisors σ(n): 1005984
• Sum of proper divisors (its aliquot sum) s(n): 617154
• 388830 is an abundant number, because the sum of its proper divisors (617154) is greater than itself. Its abundance is 228324

Bases of 388830

• Binary: 1011110111011011110₂
• Hexadecimal: 0x5EEDE
• Base-36: 8C0U

Squares and roots of 388830

• 388830 squared (388830²) is 151188768900
• 388830 cubed (388830³) is 58786729011387000
• The square root of 388830 is 623.5623465219
• The cube root of 388830 is 72.9883011215

Scales and comparisons

• 388,830 seconds is equal to 4 days, 12 hours, 30 seconds.
• To count from 1 to 388,830 would take you about four days.

  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 388830 cubic inches would be around 6.1 feet tall.

Recreational maths with 388830

• 388830 backwards is 038883
• 388830 is a Harshad number.
• The number of decimal digits it has is: 6
• The sum of 388830's digits is 30
• More coming soon!