21728200
21,728,200 is an even composite number composed of five prime numbers multiplied together.
21728200 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21728200:
23 × 52 × 13 × 61 × 137
(2 × 2 × 2 × 5 × 5 × 13 × 61 × 137)See below for interesting mathematical facts about the number 21728200 from the Numbermatics database.
Names of 21728200
- Cardinal: 21728200 can be written as Twenty-one million, seven hundred twenty-eight thousand, two hundred.
Scientific notation
- Scientific notation: 2.17282 × 107
Factors of 21728200
Divisors of 21728200
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 4 5 8 10 13 20 25 26 40 50 52 61 65 100 104 122 130 137 200 244 260 274 305 325 488 520 548 610 650 685 793 1096 1220 1300 1370 1525 1586 1781 2440 2600 2740 3050 3172 3425 3562 3965 5480 6100 6344 6850 7124 7930 8357 8905 12200 13700 14248 15860 16714 17810 19825 27400 31720 33428 35620 39650 41785 44525 66856 71240 79300 83570 89050 108641 158600 167140 178100 208925 217282 334280 356200 417850 434564 543205 835700 869128 1086410 1671400 2172820 2716025 4345640 5432050 10864100 21728200
- Sum of all divisors σ(n): 55699560
- Sum of proper divisors (its aliquot sum) s(n): 33971360
- 21728200 is an abundant number, because the sum of its proper divisors (33971360) is greater than itself. Its abundance is 12243160
Bases of 21728200
- Binary: 10100101110001011110010002
- Hexadecimal: 0x14B8BC8
- Base-36: CXPL4
Squares and roots of 21728200
- 21728200 squared (217282002) is 472114675240000
- 21728200 cubed (217282003) is 10258202086549768000000
-
The
square root of 21728200 is 4661.3517352803 -
The
cube root of 21728200 is 279.0452173387
Scales and comparisons
How big is 21728200?- 21,728,200 seconds is equal to 35 weeks, 6 days, 11 hours, 36 minutes, 40 seconds.
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To count from 1 to 21,728,200 would take you about six 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 21728200 cubic inches would be around 23.3 feet tall.
Recreational maths with 21728200
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The information we have on file for 21728200 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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