30421997

Names of 30421997

• Cardinal: 30421997 can be written as Thirty million, four hundred twenty-one thousand, nine hundred ninety-seven.

Scientific notation

• Scientific notation: 3.0421997 × 10⁷

Factors of 30421997

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 29682

Divisors of 30421997

• Number of divisors d(n): 4
• Complete list of divisors:
  1 1063 28619 30421997
• Sum of all divisors σ(n): 30451680
• Sum of proper divisors (its aliquot sum) s(n): 29683
• 30421997 is a deficient number, because the sum of its proper divisors (29683) is less than itself. Its deficiency is 30392314

Bases of 30421997

• Binary: 1110100000011001111101101₂
• Hexadecimal: 0x1D033ED
• Base-36: I41RH

Squares and roots of 30421997

• 30421997 squared (30421997²) is 925497901468009
• 30421997 cubed (30421997³) is 28155494381966065393973
• The square root of 30421997 is 5515.6139277509
• The cube root of 30421997 is 312.1734085609

Scales and comparisons

• 30,421,997 seconds is equal to 50 weeks, 2 days, 2 hours, 33 minutes, 17 seconds.
• To count from 1 to 30,421,997 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 30421997 cubic inches would be around 26 feet tall.

Recreational maths with 30421997

• 30421997 backwards is 79912403
• The number of decimal digits it has is: 8
• The sum of 30421997's digits is 35
• More coming soon!