21422720
21,422,720 is an even composite number composed of five prime numbers multiplied together.
21422720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21422720:
27 × 5 × 11 × 17 × 179
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 11 × 17 × 179)See below for interesting mathematical facts about the number 21422720 from the Numbermatics database.
Names of 21422720
- Cardinal: 21422720 can be written as Twenty-one million, four hundred twenty-two thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.142272 × 107
Factors of 21422720
Divisors of 21422720
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 4 5 8 10 11 16 17 20 22 32 34 40 44 55 64 68 80 85 88 110 128 136 160 170 176 179 187 220 272 320 340 352 358 374 440 544 640 680 704 716 748 880 895 935 1088 1360 1408 1432 1496 1760 1790 1870 1969 2176 2720 2864 2992 3043 3520 3580 3740 3938 5440 5728 5984 6086 7040 7160 7480 7876 9845 10880 11456 11968 12172 14320 14960 15215 15752 19690 22912 23936 24344 28640 29920 30430 31504 33473 39380 48688 57280 59840 60860 63008 66946 78760 97376 114560 119680 121720 126016 133892 157520 167365 194752 243440 252032 267784 315040 334730 389504 486880 535568 630080 669460 973760 1071136 1260160 1338920 1947520 2142272 2677840 4284544 5355680 10711360 21422720
- Sum of all divisors σ(n): 59486400
- Sum of proper divisors (its aliquot sum) s(n): 38063680
- 21422720 is an abundant number, because the sum of its proper divisors (38063680) is greater than itself. Its abundance is 16640960
Bases of 21422720
- Binary: 10100011011100010100000002
- Hexadecimal: 0x146E280
- Base-36: CR5VK
Squares and roots of 21422720
- 21422720 squared (214227202) is 458932932198400
- 21422720 cubed (214227203) is 9831591705265307648000
-
The
square root of 21422720 is 4628.4684291891 -
The
cube root of 21422720 is 277.7313278183
Scales and comparisons
How big is 21422720?- 21,422,720 seconds is equal to 35 weeks, 2 days, 22 hours, 45 minutes, 20 seconds.
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To count from 1 to 21,422,720 would take you about twenty-two hours!
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 21422720 cubic inches would be around 23.1 feet tall.
Recreational maths with 21422720
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The information we have on file for 21422720 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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