21492135
21,492,135 is an odd composite number composed of four prime numbers multiplied together.
21492135 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred eight divisors.
Prime factorization of 21492135:
35 × 5 × 72 × 192
(3 × 3 × 3 × 3 × 3 × 5 × 7 × 7 × 19 × 19)See below for interesting mathematical facts about the number 21492135 from the Numbermatics database.
Names of 21492135
- Cardinal: 21492135 can be written as Twenty-one million, four hundred ninety-two thousand, one hundred thirty-five.
Scientific notation
- Scientific notation: 2.1492135 × 107
Factors of 21492135
Divisors of 21492135
- Number of divisors d(n): 108
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Complete list of divisors:
1 3 5 7 9 15 19 21 27 35 45 49 57 63 81 95 105 133 135 147 171 189 243 245 285 315 361 399 405 441 513 567 665 735 855 931 945 1083 1197 1215 1323 1539 1701 1805 1995 2205 2527 2565 2793 2835 3249 3591 3969 4617 4655 5415 5985 6615 7581 7695 8379 8505 9747 10773 11907 12635 13965 16245 17689 17955 19845 22743 23085 25137 29241 32319 37905 41895 48735 53067 53865 59535 68229 75411 87723 88445 113715 125685 146205 159201 161595 204687 226233 265335 341145 377055 438615 477603 614061 796005 1023435 1131165 1432809 2388015 3070305 4298427 7164045 21492135
- Sum of all divisors σ(n): 47429928
- Sum of proper divisors (its aliquot sum) s(n): 25937793
- 21492135 is an abundant number, because the sum of its proper divisors (25937793) is greater than itself. Its abundance is 4445658
Bases of 21492135
- Binary: 10100011111110001101001112
- Hexadecimal: 0x147F1A7
- Base-36: CSNFR
Squares and roots of 21492135
- 21492135 squared (214921352) is 461911866858225
- 21492135 cubed (214921353) is 9927472200618997560375
-
The
square root of 21492135 is 4635.9610654103 -
The
cube root of 21492135 is 278.0309775187
Scales and comparisons
How big is 21492135?- 21,492,135 seconds is equal to 35 weeks, 3 days, 18 hours, 2 minutes, 15 seconds.
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To count from 1 to 21,492,135 would take you about two 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 21492135 cubic inches would be around 23.2 feet tall.
Recreational maths with 21492135
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