21490000
21,490,000 is an even composite number composed of four prime numbers multiplied together.
21490000 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred divisors.
Prime factorization of 21490000:
24 × 54 × 7 × 307
(2 × 2 × 2 × 2 × 5 × 5 × 5 × 5 × 7 × 307)See below for interesting mathematical facts about the number 21490000 from the Numbermatics database.
Names of 21490000
- Cardinal: 21490000 can be written as Twenty-one million, four hundred ninety thousand.
Scientific notation
- Scientific notation: 2.149 × 107
Factors of 21490000
Divisors of 21490000
- Number of divisors d(n): 100
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 25 28 35 40 50 56 70 80 100 112 125 140 175 200 250 280 307 350 400 500 560 614 625 700 875 1000 1228 1250 1400 1535 1750 2000 2149 2456 2500 2800 3070 3500 4298 4375 4912 5000 6140 7000 7675 8596 8750 10000 10745 12280 14000 15350 17192 17500 21490 24560 30700 34384 35000 38375 42980 53725 61400 70000 76750 85960 107450 122800 153500 171920 191875 214900 268625 307000 383750 429800 537250 614000 767500 859600 1074500 1343125 1535000 2149000 2686250 3070000 4298000 5372500 10745000 21490000
- Sum of all divisors σ(n): 59655904
- Sum of proper divisors (its aliquot sum) s(n): 38165904
- 21490000 is an abundant number, because the sum of its proper divisors (38165904) is greater than itself. Its abundance is 16675904
Bases of 21490000
- Binary: 10100011111101001010100002
- Hexadecimal: 0x147E950
- Base-36: CSLSG
Squares and roots of 21490000
- 21490000 squared (214900002) is 461820100000000
- 21490000 cubed (214900003) is 9924513949000000000000
-
The
square root of 21490000 is 4635.7307945997 -
The
cube root of 21490000 is 278.0217708049
Scales and comparisons
How big is 21490000?- 21,490,000 seconds is equal to 35 weeks, 3 days, 17 hours, 26 minutes, 40 seconds.
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To count from 1 to 21,490,000 would take you about two 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 21490000 cubic inches would be around 23.2 feet tall.
Recreational maths with 21490000
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The information we have on file for 21490000 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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