20138942 is an even 8-digits composite number following 20138941
and preceding 20138943 . In scientific notation, it is written as 2.0138942 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 9898744 positive integers (up to 20138942) that are relatively prime to 20138942.
20138942 has 8 divisors, whose sum is 30720600
The reverse of 20138942 is 24983102
Previous prime number is 59
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred thirty-eight thousand nine hundred forty-two
Scientific notation
2.0138942 × 10^7
Engineering notation
2.0138942 × 10^6
Prime Factorization
2 × 59 × 170669
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20138942
Product of the distinct prime numbers
The prime factorization of 20138942 is 2 × 59 × 170669.
Since it has a total of 3 prime factors.
3 , 10 , 51 , 19 , 457 , 469 , 667 , 8881 , 66023 , 97119 , 591687 , 241168 , 65024 , 4558382 , 51401419 , 45784220 , 271968407 , 615351035 , 3371457331 , 8179489334
n×2
40277884
n×3
60416826
n×4
80555768
n×5
100694710
n÷2
10069471
n÷3
6712980.6666667
n÷3
5034735.5
n÷5
4027788.4
n2
405576984879364
n3
8.1678913750204E+21
n4
1.6449269066384E+29
n5
3.3127087567029E+36
2 √n
4487.6432567663
3 √n
272.06888934161
4 √n
66.989874285345
5 √n
28.893977497736
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20138941
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20138942 can be divided by 8 positive divisors.
The sum of these divisors (counting 20138942) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110100101110111110
3
Ternary
1101220011102202
4
Quaternary
1030310232332
5
Quinary
20123421232
6
Senary
1555351502
8
Octal
114645676
10
Decimal
20138942
12
Duodecimal
68b2592
16
Hexadecimal
1334bbe
20
Vigesimal
65h772
36
Base36
bznb2
md5
692352bdb9deae6613ed014648bc86c3
sha1
e7ceff018321586dc320ea4385d64a9d7848c15d
sha256
41c4b47fb1dbc0b128b3d0aad41a0e411fbfab674701af8420b502bef78339f2
sha512
0280c4649ef049efd7fdf7f15e58bbeb87bc95422d0bf37cb8a993972929753247c58cde8490540056a09d1f4ccec0e3de1a81398faaa73682250afb99c256ec
ripemd-160
6f81cd55cc418cf25b18dfdcdbf9c2455ab440f1
Diameter
40277884
Circumference
126536704.47654
Area
1.2741576761621E+15
Volume
3.4213583385445E+22
Surface area
5.0966307046484E+15
Circumference
126536704.47654
Perimeter
80555768
Area
405576984879364
Diagonal
28480764.908245
Surface area
2433461909276184
Volume
8.1678913750204E+21
Space diagonal
34881670.754683
Perimeter
60416826
Area
1.7561998604791E+14
Altitude
17440835.377341
Surface area
1.7561998604791E+14
Volume
9.6259522987867E+20
Height
9493588.3027484