21312960
21,312,960 is an even composite number composed of four prime numbers multiplied together.
21312960 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty-four divisors.
Prime factorization of 21312960:
26 × 3 × 5 × 1492
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 149 × 149)See below for interesting mathematical facts about the number 21312960 from the Numbermatics database.
Names of 21312960
- Cardinal: 21312960 can be written as Twenty-one million, three hundred twelve thousand, nine hundred sixty.
Scientific notation
- Scientific notation: 2.131296 × 107
Factors of 21312960
Divisors of 21312960
- Number of divisors d(n): 84
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 149 160 192 240 298 320 447 480 596 745 894 960 1192 1490 1788 2235 2384 2980 3576 4470 4768 5960 7152 8940 9536 11920 14304 17880 22201 23840 28608 35760 44402 47680 66603 71520 88804 111005 133206 143040 177608 222010 266412 333015 355216 444020 532824 666030 710432 888040 1065648 1332060 1420864 1776080 2131296 2664120 3552160 4262592 5328240 7104320 10656480 21312960
- Sum of all divisors σ(n): 68125848
- Sum of proper divisors (its aliquot sum) s(n): 46812888
- 21312960 is an abundant number, because the sum of its proper divisors (46812888) is greater than itself. Its abundance is 25499928
Bases of 21312960
- Binary: 10100010100110101110000002
- Hexadecimal: 0x14535C0
- Base-36: COT6O
Squares and roots of 21312960
- 21312960 squared (213129602) is 454242263961600
- 21312960 cubed (213129603) is 9681247202123022336000
-
The
square root of 21312960 is 4616.5961486793 -
The
cube root of 21312960 is 277.2561936181
Scales and comparisons
How big is 21312960?- 21,312,960 seconds is equal to 35 weeks, 1 day, 16 hours, 16 minutes.
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To count from 1 to 21,312,960 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 21312960 cubic inches would be around 23.1 feet tall.
Recreational maths with 21312960
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The information we have on file for 21312960 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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