30856742

Names of 30856742

• Cardinal: 30856742 can be written as Thirty million, eight hundred fifty-six thousand, seven hundred forty-two.

Scientific notation

• Scientific notation: 3.0856742 × 10⁷

Factors of 30856742

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 956

Divisors of 30856742

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 7 14 37 71 74 142 259 497 518 839 994 1678 2627 5254 5873 11746 18389 31043 36778 59569 62086 119138 217301 416983 434602 833966 2204053 4408106 15428371 30856742
• Sum of all divisors σ(n): 55157760
• Sum of proper divisors (its aliquot sum) s(n): 24301018
• 30856742 is a deficient number, because the sum of its proper divisors (24301018) is less than itself. Its deficiency is 6555724

Bases of 30856742

• Binary: 1110101101101011000100110₂
• Hexadecimal: 0x1D6D626
• Base-36: IDD7Q

Squares and roots of 30856742

• 30856742 squared (30856742²) is 952138526854564
• 30856742 cubed (30856742³) is 29379892871411352870488
• The square root of 30856742 is 5554.8845172515
• The cube root of 30856742 is 313.6534169363

Scales and comparisons

• 30,856,742 seconds is equal to 51 weeks, 3 hours, 19 minutes, 2 seconds.
• To count from 1 to 30,856,742 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 30856742 cubic inches would be around 26.1 feet tall.

Recreational maths with 30856742

• 30856742 backwards is 24765803
• The number of decimal digits it has is: 8
• The sum of 30856742's digits is 35
• More coming soon!