30149428

Names of 30149428

• Cardinal: 30149428 can be written as Thirty million, one hundred forty-nine thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 3.0149428 × 10⁷

Factors of 30149428

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 396724

Divisors of 30149428

• Number of divisors d(n): 12
• Complete list of divisors:
  1 2 4 19 38 76 396703 793406 1586812 7537357 15074714 30149428
• Sum of all divisors σ(n): 55538560
• Sum of proper divisors (its aliquot sum) s(n): 25389132
• 30149428 is a deficient number, because the sum of its proper divisors (25389132) is less than itself. Its deficiency is 4760296

Bases of 30149428

• Binary: 1110011000000101100110100₂
• Hexadecimal: 0x1CC0B34
• Base-36: HY7G4

Squares and roots of 30149428

• 30149428 squared (30149428²) is 908988008727184
• 30149428 cubed (30149428³) is 27405468521983605650752
• The square root of 30149428 is 5490.8494789059
• The cube root of 30149428 is 311.2382936733

Scales and comparisons

• 30,149,428 seconds is equal to 49 weeks, 5 days, 22 hours, 50 minutes, 28 seconds.
• To count from 1 to 30,149,428 would take you about twenty-two 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 30149428 cubic inches would be around 25.9 feet tall.

Recreational maths with 30149428

• 30149428 backwards is 82494103
• The number of decimal digits it has is: 8
• The sum of 30149428's digits is 31
• More coming soon!