21680800
21,680,800 is an even composite number composed of four prime numbers multiplied together.
What does the number 21680800 look like?
This visualization shows the relationship between its 4 prime factors (large circles) and 72 divisors.
21680800 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 21680800:
25 × 52 × 41 × 661
(2 × 2 × 2 × 2 × 2 × 5 × 5 × 41 × 661)See below for interesting mathematical facts about the number 21680800 from the Numbermatics database.
Names of 21680800
- Cardinal: 21680800 can be written as Twenty-one million, six hundred eighty thousand, eight hundred.
Scientific notation
- Scientific notation: 2.16808 × 107
Factors of 21680800
Divisors of 21680800
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 4 5 8 10 16 20 25 32 40 41 50 80 82 100 160 164 200 205 328 400 410 656 661 800 820 1025 1312 1322 1640 2050 2644 3280 3305 4100 5288 6560 6610 8200 10576 13220 16400 16525 21152 26440 27101 32800 33050 52880 54202 66100 105760 108404 132200 135505 216808 264400 271010 433616 528800 542020 677525 867232 1084040 1355050 2168080 2710100 4336160 5420200 10840400 21680800
- Sum of all divisors σ(n): 54301212
- Sum of proper divisors (its aliquot sum) s(n): 32620412
- 21680800 is an abundant number, because the sum of its proper divisors (32620412) is greater than itself. Its abundance is 10939612
Bases of 21680800
- Binary: 10100101011010010101000002
- Hexadecimal: 0x14AD2A0
- Base-36: CWP0G
Squares and roots of 21680800
- 21680800 squared (216808002) is 470057088640000
- 21680800 cubed (216808003) is 10191213727386112000000
-
The
square root of 21680800 is 4656.2645972925 -
The
cube root of 21680800 is 278.8421575207
Scales and comparisons
How big is 21680800?- 21,680,800 seconds is equal to 35 weeks, 5 days, 22 hours, 26 minutes, 40 seconds.
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To count from 1 to 21,680,800 would take you about five 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 21680800 cubic inches would be around 23.2 feet tall.
Recreational maths with 21680800
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The information we have on file for 21680800 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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