21351250
21,351,250 is an even composite number composed of five prime numbers multiplied together.
What does the number 21351250 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 80 divisors.
21351250 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 21351250:
2 × 54 × 19 × 29 × 31
(2 × 5 × 5 × 5 × 5 × 19 × 29 × 31)See below for interesting mathematical facts about the number 21351250 from the Numbermatics database.
Names of 21351250
- Cardinal: 21351250 can be written as Twenty-one million, three hundred fifty-one thousand, two hundred fifty.
Scientific notation
- Scientific notation: 2.135125 × 107
Factors of 21351250
Divisors of 21351250
- Number of divisors d(n): 80
-
Complete list of divisors:
1 2 5 10 19 25 29 31 38 50 58 62 95 125 145 155 190 250 290 310 475 551 589 625 725 775 899 950 1102 1178 1250 1450 1550 1798 2375 2755 2945 3625 3875 4495 4750 5510 5890 7250 7750 8990 11875 13775 14725 17081 18125 19375 22475 23750 27550 29450 34162 36250 38750 44950 68875 73625 85405 112375 137750 147250 170810 224750 344375 368125 427025 561875 688750 736250 854050 1123750 2135125 4270250 10675625 21351250
- Sum of all divisors σ(n): 44985600
- Sum of proper divisors (its aliquot sum) s(n): 23634350
- 21351250 is an abundant number, because the sum of its proper divisors (23634350) is greater than itself. Its abundance is 2283100
Bases of 21351250
- Binary: 10100010111001011010100102
- Hexadecimal: 0x145CB52
- Base-36: CPMQA
Squares and roots of 21351250
- 21351250 squared (213512502) is 455875876562500
- 21351250 cubed (213512503) is 9733519809455078125000
-
The
square root of 21351250 is 4620.7412825217 -
The
cube root of 21351250 is 277.4221300323
Scales and comparisons
How big is 21351250?- 21,351,250 seconds is equal to 35 weeks, 2 days, 2 hours, 54 minutes, 10 seconds.
-
To count from 1 to 21,351,250 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 21351250 cubic inches would be around 23.1 feet tall.
Recreational maths with 21351250
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The information we have on file for 21351250 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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