21157200
21,157,200 is an even composite number composed of four prime numbers multiplied together.
21157200 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred fifty divisors.
Prime factorization of 21157200:
24 × 34 × 52 × 653
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 5 × 653)See below for interesting mathematical facts about the number 21157200 from the Numbermatics database.
Names of 21157200
- Cardinal: 21157200 can be written as Twenty-one million, one hundred fifty-seven thousand, two hundred.
Scientific notation
- Scientific notation: 2.11572 × 107
Factors of 21157200
Divisors of 21157200
- Number of divisors d(n): 150
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 36 40 45 48 50 54 60 72 75 80 81 90 100 108 120 135 144 150 162 180 200 216 225 240 270 300 324 360 400 405 432 450 540 600 648 653 675 720 810 900 1080 1200 1296 1306 1350 1620 1800 1959 2025 2160 2612 2700 3240 3265 3600 3918 4050 5224 5400 5877 6480 6530 7836 8100 9795 10448 10800 11754 13060 15672 16200 16325 17631 19590 23508 26120 29385 31344 32400 32650 35262 39180 47016 48975 52240 52893 58770 65300 70524 78360 88155 94032 97950 105786 117540 130600 141048 146925 156720 176310 195900 211572 235080 261200 264465 282096 293850 352620 391800 423144 440775 470160 528930 587700 705240 783600 846288 881550 1057860 1175400 1322325 1410480 1763100 2115720 2350800 2644650 3526200 4231440 5289300 7052400 10578600 21157200
- Sum of all divisors σ(n): 76047774
- Sum of proper divisors (its aliquot sum) s(n): 54890574
- 21157200 is an abundant number, because the sum of its proper divisors (54890574) is greater than itself. Its abundance is 33733374
Bases of 21157200
- Binary: 10100001011010101010100002
- Hexadecimal: 0x142D550
- Base-36: CLH00
Squares and roots of 21157200
- 21157200 squared (211572002) is 447627111840000
- 21157200 cubed (211572003) is 9470536330621248000000
-
The
square root of 21157200 is 4599.6956421051 -
The
cube root of 21157200 is 276.5791242521
Scales and comparisons
How big is 21157200?- 21,157,200 seconds is equal to 34 weeks, 6 days, 21 hours.
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To count from 1 to 21,157,200 would take you about three 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 21157200 cubic inches would be around 23 feet tall.
Recreational maths with 21157200
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The information we have on file for 21157200 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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