21380424
21,380,424 is an even composite number composed of six prime numbers multiplied together.
What does the number 21380424 look like?
This visualization shows the relationship between its 6 prime factors (large circles) and 128 divisors.
21380424 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 21380424:
23 × 3 × 13 × 17 × 29 × 139
(2 × 2 × 2 × 3 × 13 × 17 × 29 × 139)See below for interesting mathematical facts about the number 21380424 from the Numbermatics database.
Names of 21380424
- Cardinal: 21380424 can be written as Twenty-one million, three hundred eighty thousand, four hundred twenty-four.
Scientific notation
- Scientific notation: 2.1380424 × 107
Factors of 21380424
Divisors of 21380424
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 6 8 12 13 17 24 26 29 34 39 51 52 58 68 78 87 102 104 116 136 139 156 174 204 221 232 278 312 348 377 408 417 442 493 556 663 696 754 834 884 986 1112 1131 1326 1479 1508 1668 1768 1807 1972 2262 2363 2652 2958 3016 3336 3614 3944 4031 4524 4726 5304 5421 5916 6409 7089 7228 8062 9048 9452 10842 11832 12093 12818 14178 14456 16124 18904 19227 21684 24186 25636 28356 30719 32248 38454 43368 48372 51272 52403 56712 61438 68527 76908 92157 96744 104806 122876 137054 153816 157209 184314 205581 209612 245752 274108 314418 368628 411162 419224 548216 628836 737256 822324 890851 1257672 1644648 1781702 2672553 3563404 5345106 7126808 10690212 21380424
- Sum of all divisors σ(n): 63504000
- Sum of proper divisors (its aliquot sum) s(n): 42123576
- 21380424 is an abundant number, because the sum of its proper divisors (42123576) is greater than itself. Its abundance is 20743152
Bases of 21380424
- Binary: 10100011000111101010010002
- Hexadecimal: 0x1463D48
- Base-36: CQ98O
Squares and roots of 21380424
- 21380424 squared (213804242) is 457122530419776
- 21380424 cubed (213804243) is 9773473520327708865024
-
The
square root of 21380424 is 4623.8970576777 -
The
cube root of 21380424 is 277.5484275521
Scales and comparisons
How big is 21380424?- 21,380,424 seconds is equal to 35 weeks, 2 days, 11 hours, 24 seconds.
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To count from 1 to 21,380,424 would take you about four 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 21380424 cubic inches would be around 23.1 feet tall.
Recreational maths with 21380424
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The information we have on file for 21380424 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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