21353085
21,353,085 is an odd composite number composed of four prime numbers multiplied together.
21353085 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 21353085:
33 × 5 × 13 × 233
(3 × 3 × 3 × 5 × 13 × 23 × 23 × 23)See below for interesting mathematical facts about the number 21353085 from the Numbermatics database.
Names of 21353085
- Cardinal: 21353085 can be written as Twenty-one million, three hundred fifty-three thousand and eighty-five.
Scientific notation
- Scientific notation: 2.1353085 × 107
Factors of 21353085
Divisors of 21353085
- Number of divisors d(n): 64
-
Complete list of divisors:
1 3 5 9 13 15 23 27 39 45 65 69 115 117 135 195 207 299 345 351 529 585 621 897 1035 1495 1587 1755 2645 2691 3105 4485 4761 6877 7935 8073 12167 13455 14283 20631 23805 34385 36501 40365 60835 61893 71415 103155 109503 158171 182505 185679 309465 328509 474513 547515 790855 928395 1423539 1642545 2372565 4270617 7117695 21353085
- Sum of all divisors σ(n): 42739200
- Sum of proper divisors (its aliquot sum) s(n): 21386115
- 21353085 is an abundant number, because the sum of its proper divisors (21386115) is greater than itself. Its abundance is 33030
Bases of 21353085
- Binary: 10100010111010010011111012
- Hexadecimal: 0x145D27D
- Base-36: CPO59
Squares and roots of 21353085
- 21353085 squared (213530852) is 455954239017225
- 21353085 cubed (213530853) is 9736029621845121889125
-
The
square root of 21353085 is 4620.9398394699 -
The
cube root of 21353085 is 277.4300773427
Scales and comparisons
How big is 21353085?- 21,353,085 seconds is equal to 35 weeks, 2 days, 3 hours, 24 minutes, 45 seconds.
-
To count from 1 to 21,353,085 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 21353085 cubic inches would be around 23.1 feet tall.
Recreational maths with 21353085
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