30690900

Names of 30690900

• Cardinal: 30690900 can be written as Thirty million, six hundred ninety thousand, nine hundred.

Scientific notation

• Scientific notation: 3.06909 × 10⁷

Factors of 30690900

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 431

Divisors of 30690900

• Number of divisors d(n): 126
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 25 27 30 36 45 50 54 60 75 81 90 100 108 135 150 162 180 225 243 270 300 324 405 421 450 486 540 675 729 810 842 900 972 1215 1263 1350 1458 1620 1684 2025 2105 2430 2526 2700 2916 3645 3789 4050 4210 4860 5052 6075 6315 7290 7578 8100 8420 10525 11367 12150 12630 14580 15156 18225 18945 21050 22734 24300 25260 31575 34101 36450 37890 42100 45468 56835 63150 68202 72900 75780 94725 102303 113670 126300 136404 170505 189450 204606 227340 284175 306909 341010 378900 409212 511515 568350 613818 682020 852525 1023030 1136700 1227636 1534545 1705050 2046060 2557575 3069090 3410100 5115150 6138180 7672725 10230300 15345450 30690900
• Sum of all divisors σ(n): 100090382
• Sum of proper divisors (its aliquot sum) s(n): 69399482
• 30690900 is an abundant number, because the sum of its proper divisors (69399482) is greater than itself. Its abundance is 38708582

Bases of 30690900

• Binary: 1110101000100111001010100₂
• Hexadecimal: 0x1D44E54
• Base-36: I9T90

Squares and roots of 30690900

• 30690900 squared (30690900²) is 941931342810000
• 30690900 cubed (30690900³) is 28908720649047429000000
• The square root of 30690900 is 5539.9368227445
• The cube root of 30690900 is 313.0904888639

Scales and comparisons

• 30,690,900 seconds is equal to 50 weeks, 5 days, 5 hours, 15 minutes.
• To count from 1 to 30,690,900 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 30690900 cubic inches would be around 26.1 feet tall.

Recreational maths with 30690900

• 30690900 backwards is 00909603
• 30690900 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30690900's digits is 27
• More coming soon!