20431391 is an odd 8-digits composite number following 20431390
and preceding 20431392 . In scientific notation, it is written as 2.0431391 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 20229000 positive integers (up to 20431391) that are relatively prime to 20431391.
20431391 has 4 divisors, whose sum is 20633784
The reverse of 20431391 is 19313402
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million four hundred thirty-one thousand three hundred ninety-one
Scientific notation
2.0431391 × 10^7
Engineering notation
2.0431391 × 10^6
Prime Factorization
101 × 202291
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20431391
Product of the distinct prime numbers
The prime factorization of 20431391 is 101 × 202291.
Since it has a total of 2 prime factors.
4 , 8 , 61 , 85 , 358 , 76 , 2164 , 7754 , 56590 , 20880 , 273207 , 156591 , 5575816 , 1911490 , 9233244 , 70102365 , 38928328 , 889724539 , 3870491855 , 7330499106
n×2
40862782
n×3
61294173
n×4
81725564
n×5
102156955
n÷2
10215695.5
n÷3
6810463.6666667
n÷3
5107847.75
n÷5
4086278.2
n2
417441738194881
n3
8.5289153727792E+21
n4
1.7425760478716E+29
n5
3.56032525813E+36
2 √n
4520.1096225645
3 √n
273.3795210797
4 √n
67.231760519597
5 √n
28.977411425886
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
-20431390
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 20431391 can be divided by 4 positive divisors.
The sum of these divisors (counting 20431391) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101111100001000011111
3
Ternary
1102110000121012
4
Quaternary
1031330020133
5
Quinary
20212301031
6
Senary
2005525435
8
Octal
115741037
10
Decimal
20431391
12
Duodecimal
6a1387b
16
Hexadecimal
137c21f
20
Vigesimal
67di9b
36
Base36
c5wyn
md5
067d6a9795208ed968259849c7a84e2c
sha1
92b2af06dec80a4c61692a750fc2b7b532ff71f9
sha256
a2a09a84a4f1cb75e36d1bcd63ec3326dd00dd134346451a282c6b89f673b030
sha512
023adfeb8211ed87c08d845e29c3257f28b054965a78c924a77158797a4949752205ccaa1e88b4a98df7e32a1d1b421230c6f3daf1b3d8f76693197ba2fec509
ripemd-160
9fb94679024ebd85ffdb4a6bdfec95f3fd687bb0
Diameter
40862782
Circumference
128374215.73644
Area
1.3114318980148E+15
Volume
3.572583717095E+22
Surface area
5.2457275920592E+15
Circumference
128374215.73644
Perimeter
81725564
Area
417441738194881
Diagonal
28894350.250348
Surface area
2504650429169286
Volume
8.5289153727792E+21
Space diagonal
35388207.281305
Perimeter
61294173
Area
1.8075757493835E+14
Altitude
17694103.640653
Surface area
1.8075757493835E+14
Volume
1.0051423160431E+21
Height
9631450.0834492