21889920
21,889,920 is an even composite number composed of five prime numbers multiplied together.
21889920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21889920:
27 × 3 × 5 × 13 × 877
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 13 × 877)See below for interesting mathematical facts about the number 21889920 from the Numbermatics database.
Names of 21889920
- Cardinal: 21889920 can be written as Twenty-one million, eight hundred eighty-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.188992 × 107
Factors of 21889920
Divisors of 21889920
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 64 65 78 80 96 104 120 128 130 156 160 192 195 208 240 260 312 320 384 390 416 480 520 624 640 780 832 877 960 1040 1248 1560 1664 1754 1920 2080 2496 2631 3120 3508 4160 4385 4992 5262 6240 7016 8320 8770 10524 11401 12480 13155 14032 17540 21048 22802 24960 26310 28064 34203 35080 42096 45604 52620 56128 57005 68406 70160 84192 91208 105240 112256 114010 136812 140320 168384 171015 182416 210480 228020 273624 280640 336768 342030 364832 420960 456040 547248 561280 684060 729664 841920 912080 1094496 1368120 1459328 1683840 1824160 2188992 2736240 3648320 4377984 5472480 7296640 10944960 21889920
- Sum of all divisors σ(n): 75227040
- Sum of proper divisors (its aliquot sum) s(n): 53337120
- 21889920 is an abundant number, because the sum of its proper divisors (53337120) is greater than itself. Its abundance is 31447200
Bases of 21889920
- Binary: 10100111000000011100000002
- Hexadecimal: 0x14E0380
- Base-36: D16DC
Squares and roots of 21889920
- 21889920 squared (218899202) is 479168597606400
- 21889920 cubed (218899203) is 10488962268116287488000
-
The
square root of 21889920 is 4678.6664766791 -
The
cube root of 21889920 is 279.7358052185
Scales and comparisons
How big is 21889920?- 21,889,920 seconds is equal to 36 weeks, 1 day, 8 hours, 32 minutes.
-
To count from 1 to 21,889,920 would take you about two weeks!
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 21889920 cubic inches would be around 23.3 feet tall.
Recreational maths with 21889920
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The information we have on file for 21889920 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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