42621405

Names of 42621405

• Cardinal: 42621405 can be written as Forty-two million, six hundred twenty-one thousand, four hundred five.

Scientific notation

• Scientific notation: 4.2621405 × 10⁷

Factors of 42621405

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 2841435

Divisors of 42621405

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 5 15 2841427 8524281 14207135 42621405
• Sum of all divisors σ(n): 68194272
• Sum of proper divisors (its aliquot sum) s(n): 25572867
• 42621405 is a deficient number, because the sum of its proper divisors (25572867) is less than itself. Its deficiency is 17048538

Bases of 42621405

• Binary: 10100010100101100111011101₂
• Hexadecimal: 0x28A59DD
• Base-36: PDIVX

Squares and roots of 42621405

• 42621405 squared (42621405²) is 1816584164174025
• 42621405 cubed (42621405³) is 77425369377847610005125
• The square root of 42621405 is 6528.5071034653
• The cube root of 42621405 is 349.3085805897

Scales and comparisons

• 42,621,405 seconds is equal to 1 year, 18 weeks, 3 days, 7 hours, 16 minutes, 45 seconds.
• To count from 1 to 42,621,405 would take you about two years!

  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 42621405 cubic inches would be around 29.1 feet tall.

Recreational maths with 42621405

• 42621405 backwards is 50412624
• The number of decimal digits it has is: 8
• The sum of 42621405's digits is 24
• More coming soon!