20966442
20,966,442 is an even composite number composed of six prime numbers multiplied together.
20966442 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 20966442:
2 × 3 × 7 × 71 × 79 × 89
See below for interesting mathematical facts about the number 20966442 from the Numbermatics database.
Names of 20966442
- Cardinal: 20966442 can be written as Twenty million, nine hundred sixty-six thousand, four hundred forty-two.
Scientific notation
- Scientific notation: 2.0966442 × 107
Factors of 20966442
Divisors of 20966442
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 6 7 14 21 42 71 79 89 142 158 178 213 237 267 426 474 497 534 553 623 994 1106 1246 1491 1659 1869 2982 3318 3738 5609 6319 7031 11218 12638 14062 16827 18957 21093 33654 37914 39263 42186 44233 49217 78526 88466 98434 117789 132699 147651 235578 265398 295302 499201 998402 1497603 2995206 3494407 6988814 10483221 20966442
- Sum of all divisors σ(n): 49766400
- Sum of proper divisors (its aliquot sum) s(n): 28799958
- 20966442 is an abundant number, because the sum of its proper divisors (28799958) is greater than itself. Its abundance is 7833516
Bases of 20966442
- Binary: 10011111111101100001010102
- Hexadecimal: 0x13FEC2A
- Base-36: CHDT6
Squares and roots of 20966442
- 20966442 squared (209664422) is 439591690139364
- 20966442 cubed (209664423) is 9216673674988947222888
-
The
square root of 20966442 is 4578.9127530453 -
The
cube root of 20966442 is 275.7453805941
Scales and comparisons
How big is 20966442?- 20,966,442 seconds is equal to 34 weeks, 4 days, 16 hours, 42 seconds.
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To count from 1 to 20,966,442 would take you about three seconds!
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 20966442 cubic inches would be around 23 feet tall.
Recreational maths with 20966442
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