21320145
21,320,145 is an odd composite number composed of five prime numbers multiplied together.
21320145 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21320145:
33 × 5 × 72 × 11 × 293
(3 × 3 × 3 × 5 × 7 × 7 × 11 × 293)See below for interesting mathematical facts about the number 21320145 from the Numbermatics database.
Names of 21320145
- Cardinal: 21320145 can be written as Twenty-one million, three hundred twenty thousand, one hundred forty-five.
Scientific notation
- Scientific notation: 2.1320145 × 107
Factors of 21320145
Divisors of 21320145
- Number of divisors d(n): 96
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Complete list of divisors:
1 3 5 7 9 11 15 21 27 33 35 45 49 55 63 77 99 105 135 147 165 189 231 245 293 297 315 385 441 495 539 693 735 879 945 1155 1323 1465 1485 1617 2051 2079 2205 2637 2695 3223 3465 4395 4851 6153 6615 7911 8085 9669 10255 10395 13185 14357 14553 16115 18459 22561 24255 29007 30765 39555 43071 48345 55377 67683 71785 72765 87021 92295 112805 129213 145035 157927 203049 215355 276885 338415 387639 435105 473781 609147 646065 789635 1015245 1421343 1938195 2368905 3045735 4264029 7106715 21320145
- Sum of all divisors σ(n): 48263040
- Sum of proper divisors (its aliquot sum) s(n): 26942895
- 21320145 is an abundant number, because the sum of its proper divisors (26942895) is greater than itself. Its abundance is 5622750
Bases of 21320145
- Binary: 10100010101010001110100012
- Hexadecimal: 0x14551D1
- Base-36: COYQ9
Squares and roots of 21320145
- 21320145 squared (213201452) is 454548582821025
- 21320145 cubed (213201453) is 9691041695288762048625
-
The
square root of 21320145 is 4617.3742538373 -
The
cube root of 21320145 is 277.2873462115
Scales and comparisons
How big is 21320145?- 21,320,145 seconds is equal to 35 weeks, 1 day, 18 hours, 15 minutes, 45 seconds.
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To count from 1 to 21,320,145 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 21320145 cubic inches would be around 23.1 feet tall.
Recreational maths with 21320145
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The information we have on file for 21320145 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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