20212500

Names of 20212500

• Cardinal: 20212500 can be written as Twenty million, two hundred twelve thousand, five hundred.

Scientific notation

• Scientific notation: 2.02125 × 10⁷

Factors of 20212500

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 28

Divisors of 20212500

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 7 10 11 12 14 15 20 21 22 25 28 30 33 35 42 44 49 50 55 60 66 70 75 77 84 98 100 105 110 125 132 140 147 150 154 165 175 196 210 220 231 245 250 275 294 300 308 330 350 375 385 420 462 490 500 525 539 550 588 625 660 700 735 750 770 825 875 924 980 1050 1078 1100 1155 1225 1250 1375 1470 1500 1540 1617 1650 1750 1875 1925 2100 2156 2310 2450 2500 2625 2695 2750 2940 3125 3234 3300 3500 3675 3750 3850 4125 4375 4620 4900 5250 5390 5500 5775 6125 6250 6468 6875 7350 7500 7700 8085 8250 8750 9375 9625 10500 10780 11550 12250 12500 13125 13475 13750 14700 16170 16500 17500 18375 18750 19250 20625 21875 23100 24500 26250 26950 27500 28875 30625 32340 34375 36750 37500 38500 40425 41250 43750 48125 52500 53900 57750 61250 65625 67375 68750 73500 80850 82500 87500 91875 96250 103125 115500 122500 131250 134750 137500 144375 153125 161700 183750 192500 202125 206250 240625 262500 269500 288750 306250 336875 367500 404250 412500 459375 481250 577500 612500 673750 721875 808500 918750 962500 1010625 1347500 1443750 1684375 1837500 2021250 2887500 3368750 4042500 5053125 6737500 10106250 20212500
• Sum of all divisors σ(n): 74807712
• Sum of proper divisors (its aliquot sum) s(n): 54595212
• 20212500 is an abundant number, because the sum of its proper divisors (54595212) is greater than itself. Its abundance is 34382712

Bases of 20212500

• Binary: 1001101000110101100010100₂
• Hexadecimal: 0x1346B14
• Base-36: C182C

Squares and roots of 20212500

• 20212500 squared (20212500²) is 408545156250000
• 20212500 cubed (20212500³) is 8257718970703125000000
• The square root of 20212500 is 4495.8314025329
• The cube root of 20212500 is 272.3997330519

Scales and comparisons

• 20,212,500 seconds is equal to 33 weeks, 2 days, 22 hours, 35 minutes.
• To count from 1 to 20,212,500 would take you about fifty 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 20212500 cubic inches would be around 22.7 feet tall.

Recreational maths with 20212500

• 20212500 backwards is 00521202
• 20212500 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20212500's digits is 12
• More coming soon!