20191243 is an odd 8-digits composite number following 20191242
and preceding 20191244 . In scientific notation, it is written as 2.0191243 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 19128528 positive integers (up to 20191243) that are relatively prime to 20191243.
20191243 has 4 divisors, whose sum is 21253960
The reverse of 20191243 is 34219102
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred ninety-one thousand two hundred forty-three
Scientific notation
2.0191243 × 10^7
Engineering notation
2.0191243 × 10^6
Prime Factorization
19 × 1062697
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20191243
Product of the distinct prime numbers
The prime factorization of 20191243 is 19 × 1062697.
Since it has a total of 2 prime factors.
3 , 5 , 22 , 9 , 645 , 535 , 7929 , 2116 , 63093 , 81310 , 496573 , 956646 , 8797461 , 9677752 , 65324713 , 47815253 , 274475464 , 278742206 , 8290521170 , 7032204111
n×2
40382486
n×3
60573729
n×4
80764972
n×5
100956215
n÷2
10095621.5
n÷3
6730414.3333333
n÷3
5047810.75
n÷5
4038248.6
n2
407686293885049
n3
8.2316930276024E+21
n4
1.6620811422173E+29
n5
3.3559484228226E+36
2 √n
4493.4667017794
3 √n
272.30420747469
4 √n
67.033325307487
5 √n
28.908969512072
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20191242
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20191243 can be divided by 4 positive divisors.
The sum of these divisors (counting 20191243) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000001100000001011
3
Ternary
1101222211011211
4
Quaternary
1031001200023
5
Quinary
20132104433
6
Senary
2000433551
8
Octal
115014013
10
Decimal
20191243
12
Duodecimal
69188b7
16
Hexadecimal
134180b
20
Vigesimal
663i23
36
Base36
c0rnv
md5
20a35d1e1ad54b81895f0a2cdc976664
sha1
0a3d1bb73dcbf99c588fcc20dfeca4d8702cfc24
sha256
2eb840f320aee874bb387eea6df4c085e882faeb530fc75346c18c70490fe8e4
sha512
844a020831dd8bf41e57021f5e2ca6e8350781902b04aa4805d812e73aa92ebf430e9dd33e204235d8541f80cf7464ca2ee074c8f424ea536cc22a185a6cc017
ripemd-160
d2f571efafd5cadc2d450e6c335d46b703ec0d01
Diameter
40382486
Circumference
126865321.35129
Area
1.2807842658385E+15
Volume
3.448083512283E+22
Surface area
5.1231370633541E+15
Circumference
126865321.35129
Perimeter
80764972
Area
407686293885049
Diagonal
28554729.691771
Surface area
2446117763310294
Volume
8.2316930276024E+21
Space diagonal
34972258.743969
Perimeter
60573729
Area
1.7653334363959E+14
Altitude
17486129.371985
Surface area
1.7653334363959E+14
Volume
9.7011432674395E+20
Height
9518243.2305903