100405

Names of 100405

• Cardinal: 100405 can be written as One hundred thousand, four hundred five.

Scientific notation

• Scientific notation: 1.00405 × 10⁵

Factors of 100405

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 515

Divisors of 100405

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 43 215 467 2335 20081 100405
• Sum of all divisors σ(n): 123552
• Sum of proper divisors (its aliquot sum) s(n): 23147
• 100405 is a deficient number, because the sum of its proper divisors (23147) is less than itself. Its deficiency is 77258

Bases of 100405

• Binary: 11000100000110101₂
• Hexadecimal: 0x18835
• Base-36: 25H1

Squares and roots of 100405

• 100405 squared (100405²) is 10081164025
• 100405 cubed (100405³) is 1012199273930125
• The square root of 100405 is 316.8674801869
• The cube root of 100405 is 46.4784653823

Scales and comparisons

• 100,405 seconds is equal to 1 day, 3 hours, 53 minutes, 25 seconds.
• To count from 1 to 100,405 would take you about three hours.

  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 100405 cubic inches would be around 3.9 feet tall.

Recreational maths with 100405

• 100405 backwards is 504001
• The number of decimal digits it has is: 6
• The sum of 100405's digits is 10
• More coming soon!