42728456

Names of 42728456

• Cardinal: 42728456 can be written as Forty-two million, seven hundred twenty-eight thousand, four hundred fifty-six.

Scientific notation

• Scientific notation: 4.2728456 × 10⁷

Factors of 42728456

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 5341059

Divisors of 42728456

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 4 8 5341057 10682114 21364228 42728456
• Sum of all divisors σ(n): 80115870
• Sum of proper divisors (its aliquot sum) s(n): 37387414
• 42728456 is a deficient number, because the sum of its proper divisors (37387414) is less than itself. Its deficiency is 5341042

Bases of 42728456

• Binary: 10100010111111110000001000₂
• Hexadecimal: 0x28BFC08
• Base-36: PFTHK

Squares and roots of 42728456

• 42728456 squared (42728456²) is 1825720952143936
• 42728456 cubed (42728456³) is 78010237371960275042816
• The square root of 42728456 is 6536.7006968347
• The cube root of 42728456 is 349.6007856405

Scales and comparisons

• 42,728,456 seconds is equal to 1 year, 18 weeks, 4 days, 13 hours, 56 seconds.
• To count from 1 to 42,728,456 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 42728456 cubic inches would be around 29.1 feet tall.

Recreational maths with 42728456

• 42728456 backwards is 65482724
• The number of decimal digits it has is: 8
• The sum of 42728456's digits is 38
• More coming soon!