30356820

Names of 30356820

• Cardinal: 30356820 can be written as Thirty million, three hundred fifty-six thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 3.035682 × 10⁷

Factors of 30356820

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 12996

Divisors of 30356820

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 180 195 234 260 390 468 585 780 1170 2340 12973 25946 38919 51892 64865 77838 116757 129730 155676 168649 194595 233514 259460 337298 389190 467028 505947 583785 674596 778380 843245 1011894 1167570 1517841 1686490 2023788 2335140 2529735 3035682 3372980 5059470 6071364 7589205 10118940 15178410 30356820
• Sum of all divisors σ(n): 99173256
• Sum of proper divisors (its aliquot sum) s(n): 68816436
• 30356820 is an abundant number, because the sum of its proper divisors (68816436) is greater than itself. Its abundance is 38459616

Bases of 30356820

• Binary: 1110011110011010101010100₂
• Hexadecimal: 0x1CF3554
• Base-36: I2NH0

Squares and roots of 30356820

• 30356820 squared (30356820²) is 921536520512400
• 30356820 cubed (30356820³) is 27974918276621234568000
• The square root of 30356820 is 5509.7023513071
• The cube root of 30356820 is 311.9503126003

Scales and comparisons

• 30,356,820 seconds is equal to 50 weeks, 1 day, 8 hours, 27 minutes.
• To count from 1 to 30,356,820 would take you about twenty-three 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 30356820 cubic inches would be around 26 feet tall.

Recreational maths with 30356820

• 30356820 backwards is 02865303
• The number of decimal digits it has is: 8
• The sum of 30356820's digits is 27
• More coming soon!