7894142

Names of 7894142

• Cardinal: 7894142 can be written as Seven million, eight hundred ninety-four thousand, one hundred forty-two.

Scientific notation

• Scientific notation: 7.894142 × 10⁶

Factors of 7894142

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 3947073

Divisors of 7894142

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 3947071 7894142
• Sum of all divisors σ(n): 11841216
• Sum of proper divisors (its aliquot sum) s(n): 3947074
• 7894142 is a deficient number, because the sum of its proper divisors (3947074) is less than itself. Its deficiency is 3947068

Bases of 7894142

• Binary: 11110000111010001111110₂
• Hexadecimal: 0x78747E
• Base-36: 4P75Q

Squares and roots of 7894142

• 7894142 squared (7894142²) is 62317477916164
• 7894142 cubed (7894142³) is 491943019752062711288
• The square root of 7894142 is 2809.6515798227
• The cube root of 7894142 is 199.1139301987

Scales and comparisons

• 7,894,142 seconds is equal to 13 weeks, 8 hours, 49 minutes, 2 seconds.
• To count from 1 to 7,894,142 would take you about nineteen 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 7894142 cubic inches would be around 16.6 feet tall.

Recreational maths with 7894142

• 7894142 backwards is 2414987
• The number of decimal digits it has is: 7
• The sum of 7894142's digits is 35
• More coming soon!