21149128
21,149,128 is an even composite number composed of six prime numbers multiplied together.
21149128 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21149128:
23 × 7 × 11 × 13 × 19 × 139
(2 × 2 × 2 × 7 × 11 × 13 × 19 × 139)See below for interesting mathematical facts about the number 21149128 from the Numbermatics database.
Names of 21149128
- Cardinal: 21149128 can be written as Twenty-one million, one hundred forty-nine thousand, one hundred twenty-eight.
Scientific notation
- Scientific notation: 2.1149128 × 107
Factors of 21149128
Divisors of 21149128
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 4 7 8 11 13 14 19 22 26 28 38 44 52 56 76 77 88 91 104 133 139 143 152 154 182 209 247 266 278 286 308 364 418 494 532 556 572 616 728 836 973 988 1001 1064 1112 1144 1463 1529 1672 1729 1807 1946 1976 2002 2641 2717 2926 3058 3458 3614 3892 4004 5282 5434 5852 6116 6916 7228 7784 8008 10564 10703 10868 11704 12232 12649 13832 14456 18487 19019 19877 21128 21406 21736 25298 29051 34333 36974 38038 39754 42812 50596 58102 68666 73948 76076 79508 85624 101192 116204 137332 139139 147896 152152 159016 203357 232408 240331 274664 278278 377663 406714 480662 556556 755326 813428 961324 1113112 1510652 1626856 1922648 2643641 3021304 5287282 10574564 21149128
- Sum of all divisors σ(n): 56448000
- Sum of proper divisors (its aliquot sum) s(n): 35298872
- 21149128 is an abundant number, because the sum of its proper divisors (35298872) is greater than itself. Its abundance is 14149744
Bases of 21149128
- Binary: 10100001010110101110010002
- Hexadecimal: 0x142B5C8
- Base-36: CLARS
Squares and roots of 21149128
- 21149128 squared (211491282) is 447285615160384
- 21149128 cubed (211491283) is 9459700727585701745152
-
The
square root of 21149128 is 4598.8181090363 -
The
cube root of 21149128 is 276.5439458311
Scales and comparisons
How big is 21149128?- 21,149,128 seconds is equal to 34 weeks, 6 days, 18 hours, 45 minutes, 28 seconds.
-
To count from 1 to 21,149,128 would take you about three 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 21149128 cubic inches would be around 23 feet tall.
Recreational maths with 21149128
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The information we have on file for 21149128 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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