20121386 is an even 8-digits composite number following 20121385
and preceding 20121387 . In scientific notation, it is written as 2.0121386 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 10054240 positive integers (up to 20121386) that are relatively prime to 20121386.
20121386 has 8 divisors, whose sum is 30201444
The reverse of 20121386 is 68312102
Previous prime number is 2633
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred twenty-one thousand three hundred eighty-six
Scientific notation
2.0121386 × 10^7
Engineering notation
2.0121386 × 10^6
Prime Factorization
2 × 2633 × 3821
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121386
Product of the distinct prime numbers
The prime factorization of 20121386 is 2 × 2633 × 3821.
Since it has a total of 3 prime factors.
4 , 5 , 67 , 85 , 388 , 431 , 5048 , 8928 , 53956 , 62370 , 31204 , 736377 , 2833841 , 1561027 , 52714341 , 14823172 , 224351330 , 934490753 , 7345953523 , 1050675635
n×2
40242772
n×3
60364158
n×4
80485544
n×5
100606930
n÷2
10060693
n÷3
6707128.6666667
n÷3
5030346.5
n÷5
4024277.2
n2
404870174560996
n3
8.1465490622292E+21
n4
1.6391985824905E+29
n5
3.2982947408944E+36
2 √n
4485.6867924544
3 √n
271.98980822539
4 √n
66.975270006581
5 √n
28.888938110436
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
-20121385
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 20121386 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121386) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000011100101010
3
Ternary
1101212021100112
4
Quaternary
1030300130222
5
Quinary
20122341021
6
Senary
1555134322
8
Octal
114603452
10
Decimal
20121386
12
Duodecimal
68a43a2
16
Hexadecimal
133072a
20
Vigesimal
65f396
36
Base36
bz9re
md5
bde7ad77061455c47fdc9edc2a1938e6
sha1
48fd3f72aa327ecb5b68e1d8da39e4026224b3a9
sha256
7aab9d6a6c2fbcd36034664efe635460f4bc669a0413239d82cfd1a56553e05f
sha512
b6eb9e7e67c22d40c539c123fb36d5c780eae26a7c4c524e4635b735cbea6e2a745e38c5c32abb349df66f0d6471219a50eb8191f4b1edb36c2605ff68adffe7
ripemd-160
6ba8d4fa14f0eb8733ea8b4054d84c69e8be5a3c
Diameter
40242772
Circumference
126426396.87529
Area
1.2719371660584E+15
Volume
3.4124184914677E+22
Surface area
5.0877486642338E+15
Circumference
126426396.87529
Perimeter
80485544
Area
404870174560996
Diagonal
28455936.974944
Surface area
2429221047365976
Volume
8.1465490622292E+21
Space diagonal
34851262.870705
Perimeter
60364158
Area
1.7531392820223E+14
Altitude
17425631.435353
Surface area
1.7531392820223E+14
Volume
9.6008001419519E+20
Height
9485312.3249814