20831040

Names of 20831040

• Cardinal: 20831040 can be written as Twenty million, eight hundred thirty-one thousand and forty.

Scientific notation

• Scientific notation: 2.083104 × 10⁷

Factors of 20831040

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 2421

Divisors of 20831040

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 135 144 160 180 192 216 240 270 288 320 360 432 480 540 576 720 864 960 1080 1440 1728 2160 2411 2880 4320 4822 7233 8640 9644 12055 14466 19288 21699 24110 28932 36165 38576 43398 48220 57864 65097 72330 77152 86796 96440 108495 115728 130194 144660 154304 173592 192880 216990 231456 260388 289320 325485 347184 385760 433980 462912 520776 578640 650970 694368 771520 867960 1041552 1157280 1301940 1388736 1735920 2083104 2314560 2603880 3471840 4166208 5207760 6943680 10415520 20831040
• Sum of all divisors σ(n): 73517760
• Sum of proper divisors (its aliquot sum) s(n): 52686720
• 20831040 is an abundant number, because the sum of its proper divisors (52686720) is greater than itself. Its abundance is 31855680

Bases of 20831040

• Binary: 1001111011101101101000000₂
• Hexadecimal: 0x13DDB40
• Base-36: CEHC0

Squares and roots of 20831040

• 20831040 squared (20831040²) is 433932227481600
• 20831040 cubed (20831040³) is 9039259587958308864000
• The square root of 20831040 is 4564.1034168827
• The cube root of 20831040 is 275.1505071441

Scales and comparisons

• 20,831,040 seconds is equal to 34 weeks, 3 days, 2 hours, 24 minutes.
• To count from 1 to 20,831,040 would take you about fifty-one 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 20831040 cubic inches would be around 22.9 feet tall.

Recreational maths with 20831040

• 20831040 backwards is 04013802
• 20831040 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20831040's digits is 18
• More coming soon!