30920749

Names of 30920749

• Cardinal: 30920749 can be written as Thirty million, nine hundred twenty thousand, seven hundred forty-nine.

Scientific notation

• Scientific notation: 3.0920749 × 10⁷

Factors of 30920749

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 30920749

Divisors of 30920749

• Number of divisors d(n): 2
• Complete list of divisors:
  1 30920749
• Sum of all divisors σ(n): 30920750
• Sum of proper divisors (its aliquot sum) s(n): 1
• 30920749 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 30920748

Bases of 30920749

• Binary: 1110101111101000000101101₂
• Hexadecimal: 0x1D7D02D
• Base-36: IEQLP

Squares and roots of 30920749

• 30920749 squared (30920749²) is 956092718721001
• 30920749 cubed (30920749³) is 29563102976299672949749
• The square root of 30920749 is 5560.6428585191
• The cube root of 30920749 is 313.8701404953

Scales and comparisons

• 30,920,749 seconds is equal to 51 weeks, 21 hours, 5 minutes, 49 seconds.
• To count from 1 to 30,920,749 would take you about twenty-four 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 30920749 cubic inches would be around 26.2 feet tall.

Recreational maths with 30920749

• 30920749 backwards is 94702903
• The number of decimal digits it has is: 8
• The sum of 30920749's digits is 34
• More coming soon!