21315042
21,315,042 is an even composite number composed of six prime numbers multiplied together.
21315042 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 21315042:
2 × 33 × 7 × 17 × 31 × 107
(2 × 3 × 3 × 3 × 7 × 17 × 31 × 107)See below for interesting mathematical facts about the number 21315042 from the Numbermatics database.
Names of 21315042
- Cardinal: 21315042 can be written as Twenty-one million, three hundred fifteen thousand and forty-two.
Scientific notation
- Scientific notation: 2.1315042 × 107
Factors of 21315042
Divisors of 21315042
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 6 7 9 14 17 18 21 27 31 34 42 51 54 62 63 93 102 107 119 126 153 186 189 214 217 238 279 306 321 357 378 434 459 527 558 642 651 714 749 837 918 963 1054 1071 1302 1498 1581 1674 1819 1926 1953 2142 2247 2889 3162 3213 3317 3638 3689 3906 4494 4743 5457 5778 5859 6426 6634 6741 7378 9486 9951 10914 11067 11718 12733 13482 14229 16371 19902 20223 22134 23219 25466 28458 29853 32742 33201 38199 40446 46438 49113 56389 59706 66402 69657 76398 89559 98226 99603 112778 114597 139314 169167 179118 199206 208971 229194 338334 343791 394723 417942 507501 626913 687582 789446 1015002 1184169 1253826 1522503 2368338 3045006 3552507 7105014 10657521 21315042
- Sum of all divisors σ(n): 59719680
- Sum of proper divisors (its aliquot sum) s(n): 38404638
- 21315042 is an abundant number, because the sum of its proper divisors (38404638) is greater than itself. Its abundance is 17089596
Bases of 21315042
- Binary: 10100010100111101111000102
- Hexadecimal: 0x1453DE2
- Base-36: COUSI
Squares and roots of 21315042
- 21315042 squared (213150422) is 454331015461764
- 21315042 cubed (213150423) is 9684084676470149054088
-
The
square root of 21315042 is 4616.8216339817 -
The
cube root of 21315042 is 277.2652214365
Scales and comparisons
How big is 21315042?- 21,315,042 seconds is equal to 35 weeks, 1 day, 16 hours, 50 minutes, 42 seconds.
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To count from 1 to 21,315,042 would take you about six 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 21315042 cubic inches would be around 23.1 feet tall.
Recreational maths with 21315042
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The information we have on file for 21315042 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!
Keywords: Divisors of 21315042, math, Factors of 21315042, curriculum, school, college, exams, university, Prime factorization of 21315042, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, three hundred fifteen thousand and forty-two.