30994730

Names of 30994730

• Cardinal: 30994730 can be written as Thirty million, nine hundred ninety-four thousand, seven hundred thirty.

Scientific notation

• Scientific notation: 3.099473 × 10⁷

Factors of 30994730

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 7742

Divisors of 30994730

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 5 10 13 26 31 62 65 130 155 310 403 806 2015 4030 7691 15382 38455 76910 99983 199966 238421 476842 499915 999830 1192105 2384210 3099473 6198946 15497365 30994730
• Sum of all divisors σ(n): 62028288
• Sum of proper divisors (its aliquot sum) s(n): 31033558
• 30994730 is an abundant number, because the sum of its proper divisors (31033558) is greater than itself. Its abundance is 38828

Bases of 30994730

• Binary: 1110110001111000100101010₂
• Hexadecimal: 0x1D8F12A
• Base-36: IGBOQ

Squares and roots of 30994730

• 30994730 squared (30994730²) is 960673287772900
• 30994730 cubed (30994730³) is 29775809172733336817000
• The square root of 30994730 is 5567.2910827441
• The cube root of 30994730 is 314.1202630733

Scales and comparisons

• 30,994,730 seconds is equal to 51 weeks, 1 day, 17 hours, 38 minutes, 50 seconds.
• To count from 1 to 30,994,730 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 30994730 cubic inches would be around 26.2 feet tall.

Recreational maths with 30994730

• 30994730 backwards is 03749903
• The number of decimal digits it has is: 8
• The sum of 30994730's digits is 35
• More coming soon!