21220800
21,220,800 is an even composite number composed of four prime numbers multiplied together.
21220800 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty-four divisors.
Prime factorization of 21220800:
26 × 3 × 52 × 4421
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 4421)See below for interesting mathematical facts about the number 21220800 from the Numbermatics database.
Names of 21220800
- Cardinal: 21220800 can be written as Twenty-one million, two hundred twenty thousand, eight hundred.
Scientific notation
- Scientific notation: 2.12208 × 107
Factors of 21220800
Divisors of 21220800
- Number of divisors d(n): 84
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 150 160 192 200 240 300 320 400 480 600 800 960 1200 1600 2400 4421 4800 8842 13263 17684 22105 26526 35368 44210 53052 66315 70736 88420 106104 110525 132630 141472 176840 212208 221050 265260 282944 331575 353680 424416 442100 530520 663150 707360 848832 884200 1061040 1326300 1414720 1768400 2122080 2652600 3536800 4244160 5305200 7073600 10610400 21220800
- Sum of all divisors σ(n): 69637656
- Sum of proper divisors (its aliquot sum) s(n): 48416856
- 21220800 is an abundant number, because the sum of its proper divisors (48416856) is greater than itself. Its abundance is 27196056
Bases of 21220800
- Binary: 10100001111001101110000002
- Hexadecimal: 0x143CDC0
- Base-36: CMU2O
Squares and roots of 21220800
- 21220800 squared (212208002) is 450322352640000
- 21220800 cubed (212208003) is 9556200580902912000000
-
The
square root of 21220800 is 4606.6039551931 -
The
cube root of 21220800 is 276.8559856461
Scales and comparisons
How big is 21220800?- 21,220,800 seconds is equal to 35 weeks, 14 hours, 40 minutes.
-
To count from 1 to 21,220,800 would take you about four days!
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 21220800 cubic inches would be around 23.1 feet tall.
Recreational maths with 21220800
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The information we have on file for 21220800 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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