30428072

Names of 30428072

• Cardinal: 30428072 can be written as Thirty million, four hundred twenty-eight thousand and seventy-two.

Scientific notation

• Scientific notation: 3.0428072 × 10⁷

Factors of 30428072

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 3803511

Divisors of 30428072

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 4 8 3803509 7607018 15214036 30428072
• Sum of all divisors σ(n): 57052650
• Sum of proper divisors (its aliquot sum) s(n): 26624578
• 30428072 is a deficient number, because the sum of its proper divisors (26624578) is less than itself. Its deficiency is 3803494

Bases of 30428072

• Binary: 1110100000100101110101000₂
• Hexadecimal: 0x1D04BA8
• Base-36: I46G8

Squares and roots of 30428072

• 30428072 squared (30428072²) is 925867565637184
• 30428072 cubed (30428072³) is 28172364949672960629248
• The square root of 30428072 is 5516.1646095815
• The cube root of 30428072 is 312.1941865877

Scales and comparisons

• 30,428,072 seconds is equal to 50 weeks, 2 days, 4 hours, 14 minutes, 32 seconds.
• To count from 1 to 30,428,072 would take you about twenty-three 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 30428072 cubic inches would be around 26 feet tall.

Recreational maths with 30428072

• 30428072 backwards is 27082403
• The number of decimal digits it has is: 8
• The sum of 30428072's digits is 26
• More coming soon!