21398750
21,398,750 is an even composite number composed of five prime numbers multiplied together.
21398750 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 21398750:
2 × 54 × 17 × 19 × 53
(2 × 5 × 5 × 5 × 5 × 17 × 19 × 53)See below for interesting mathematical facts about the number 21398750 from the Numbermatics database.
Names of 21398750
- Cardinal: 21398750 can be written as Twenty-one million, three hundred ninety-eight thousand, seven hundred fifty.
Scientific notation
- Scientific notation: 2.139875 × 107
Factors of 21398750
Divisors of 21398750
- Number of divisors d(n): 80
-
Complete list of divisors:
1 2 5 10 17 19 25 34 38 50 53 85 95 106 125 170 190 250 265 323 425 475 530 625 646 850 901 950 1007 1250 1325 1615 1802 2014 2125 2375 2650 3230 4250 4505 4750 5035 6625 8075 9010 10070 10625 11875 13250 16150 17119 21250 22525 23750 25175 33125 34238 40375 45050 50350 66250 80750 85595 112625 125875 171190 201875 225250 251750 403750 427975 563125 629375 855950 1126250 1258750 2139875 4279750 10699375 21398750
- Sum of all divisors σ(n): 45547920
- Sum of proper divisors (its aliquot sum) s(n): 24149170
- 21398750 is an abundant number, because the sum of its proper divisors (24149170) is greater than itself. Its abundance is 2750420
Bases of 21398750
- Binary: 10100011010000100110111102
- Hexadecimal: 0x14684DE
- Base-36: CQNDQ
Squares and roots of 21398750
- 21398750 squared (213987502) is 457906501562500
- 21398750 cubed (213987503) is 9798626750310546875000
-
The
square root of 21398750 is 4625.8782949837 -
The
cube root of 21398750 is 277.6277041203
Scales and comparisons
How big is 21398750?- 21,398,750 seconds is equal to 35 weeks, 2 days, 16 hours, 5 minutes, 50 seconds.
-
To count from 1 to 21,398,750 would take you about twelve hours!
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 21398750 cubic inches would be around 23.1 feet tall.
Recreational maths with 21398750
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The information we have on file for 21398750 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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