20215800

Names of 20215800

• Cardinal: 20215800 can be written as Twenty million, two hundred fifteen thousand, eight hundred.

Scientific notation

• Scientific notation: 2.02158 × 10⁷

Factors of 20215800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1042

Divisors of 20215800

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 25 30 33 36 40 44 45 50 55 60 66 72 75 88 90 99 100 110 120 132 150 165 180 198 200 220 225 264 275 300 330 360 396 440 450 495 550 600 660 792 825 900 990 1021 1100 1320 1650 1800 1980 2042 2200 2475 3063 3300 3960 4084 4950 5105 6126 6600 8168 9189 9900 10210 11231 12252 15315 18378 19800 20420 22462 24504 25525 30630 33693 36756 40840 44924 45945 51050 56155 61260 67386 73512 76575 89848 91890 101079 102100 112310 122520 134772 153150 168465 183780 202158 204200 224620 229725 269544 280775 306300 336930 367560 404316 449240 459450 505395 561550 612600 673860 808632 842325 918900 1010790 1123100 1347720 1684650 1837800 2021580 2246200 2526975 3369300 4043160 5053950 6738600 10107900 20215800
• Sum of all divisors σ(n): 74135880
• Sum of proper divisors (its aliquot sum) s(n): 53920080
• 20215800 is an abundant number, because the sum of its proper divisors (53920080) is greater than itself. Its abundance is 33704280

Bases of 20215800

• Binary: 1001101000111011111111000₂
• Hexadecimal: 0x13477F8
• Base-36: C1AM0

Squares and roots of 20215800

• 20215800 squared (20215800²) is 408678569640000
• 20215800 cubed (20215800³) is 8261764228128312000000
• The square root of 20215800 is 4496.1983941993
• The cube root of 20215800 is 272.4145567205

Scales and comparisons

• 20,215,800 seconds is equal to 33 weeks, 2 days, 23 hours, 30 minutes.
• To count from 1 to 20,215,800 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 20215800 cubic inches would be around 22.7 feet tall.

Recreational maths with 20215800

• 20215800 backwards is 00851202
• 20215800 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20215800's digits is 18
• More coming soon!