21145950
21,145,950 is an even composite number composed of five prime numbers multiplied together.
21145950 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 21145950:
2 × 32 × 52 × 73 × 137
(2 × 3 × 3 × 5 × 5 × 7 × 7 × 7 × 137)See below for interesting mathematical facts about the number 21145950 from the Numbermatics database.
Names of 21145950
- Cardinal: 21145950 can be written as Twenty-one million, one hundred forty-five thousand, nine hundred fifty.
Scientific notation
- Scientific notation: 2.114595 × 107
Factors of 21145950
Divisors of 21145950
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 5 6 7 9 10 14 15 18 21 25 30 35 42 45 49 50 63 70 75 90 98 105 126 137 147 150 175 210 225 245 274 294 315 343 350 411 441 450 490 525 630 685 686 735 822 882 959 1029 1050 1225 1233 1370 1470 1575 1715 1918 2055 2058 2205 2450 2466 2877 3087 3150 3425 3430 3675 4110 4410 4795 5145 5754 6165 6174 6713 6850 7350 8575 8631 9590 10275 10290 11025 12330 13426 14385 15435 17150 17262 20139 20550 22050 23975 25725 28770 30825 30870 33565 40278 43155 46991 47950 51450 60417 61650 67130 71925 77175 86310 93982 100695 120834 140973 143850 154350 167825 201390 215775 234955 281946 302085 335650 422919 431550 469910 503475 604170 704865 845838 1006950 1174775 1409730 1510425 2114595 2349550 3020850 3524325 4229190 7048650 10572975 21145950
- Sum of all divisors σ(n): 66736800
- Sum of proper divisors (its aliquot sum) s(n): 45590850
- 21145950 is an abundant number, because the sum of its proper divisors (45590850) is greater than itself. Its abundance is 24444900
Bases of 21145950
- Binary: 10100001010101001010111102
- Hexadecimal: 0x142A95E
- Base-36: CL8BI
Squares and roots of 21145950
- 21145950 squared (211459502) is 447151201402500
- 21145950 cubed (211459503) is 9455436947297194875000
-
The
square root of 21145950 is 4598.4725724963 -
The
cube root of 21145950 is 276.5300933971
Scales and comparisons
How big is 21145950?- 21,145,950 seconds is equal to 34 weeks, 6 days, 17 hours, 52 minutes, 30 seconds.
-
To count from 1 to 21,145,950 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 21145950 cubic inches would be around 23 feet tall.
Recreational maths with 21145950
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The information we have on file for 21145950 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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