20685908 is an even 8-digits composite number following 20685907
and preceding 20685909 . In scientific notation, it is written as 2.0685908 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors.
There are 9798552 positive integers (up to 20685908) that are relatively prime to 20685908.
20685908 has 12 divisors, whose sum is 38105760
The reverse of 20685908 is 80958602
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million six hundred eighty-five thousand nine hundred eight
Scientific notation
2.0685908 × 10^7
Engineering notation
2.0685908 × 10^6
Prime Factorization
2 × 2 × 19 × 272183
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10342954
Product of the distinct prime numbers
The prime factorization of 20685908 is 2 × 2 × 19 × 272183.
Since it has a total of 4 prime factors.
9 , 4 , 79 , 87 , 681 , 936 , 3535 , 3717 , 60410 , 40691 , 887783 , 909737 , 8780921 , 1828558 , 63420306 , 5588411 , 929612626 , 302135310 , 3950475857 , 8209764686
n×2
41371816
n×3
62057724
n×4
82743632
n×5
103429540
n÷2
10342954
n÷3
6895302.6666667
n÷3
5171477
n÷5
4137181.6
n2
427906789784464
n3
8.8516404860568E+21
n4
1.8310422074365E+29
n5
3.7876770647147E+36
2 √n
4548.1763378304
3 √n
274.51001674347
4 √n
67.44016857801
5 √n
29.049249572477
1 , 2 , 4 , 19 , 38 , 76 , 272183 , 544366 , 1088732 , 5171477 , 10342954 , 20685908
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20685907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20685908 can be divided by 12 positive divisors.
The sum of these divisors (counting 20685908) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001110111010010001010100
3
Ternary
1102220221201202
4
Quaternary
1032322101110
5
Quinary
20243422113
6
Senary
2015212032
8
Octal
116722124
10
Decimal
20685908
12
Duodecimal
6b17018
16
Hexadecimal
13ba454
20
Vigesimal
695ef8
36
Base36
cbdck
md5
7dfc7220aa8bcbfd2ebe5a68341bccd2
sha1
077f159f4e1041acf3dad33534bc63438afcd011
sha256
d575ef4e45969e1634b90a1f041d4a3a78ef14e4a544eafd2ea1126ac2af232e
sha512
b1e6c537e4a307f08d74fa57ee538ae2bb1d4502a8bec78e1829a05d5f7f3ba7b2803cabd65ba12289241786fcc26f80f6836365bac65c3ab50dc7b0c0ba7962
ripemd-160
7c5c5f93e1a0f42beae5e28bf6b495b2aa2ff933
Diameter
41371816
Circumference
129973393.21127
Area
1.3443088272081E+15
Volume
3.7077664964285E+22
Surface area
5.3772353088323E+15
Circumference
129973393.21127
Perimeter
82743632
Area
427906789784464
Diagonal
29254291.643602
Surface area
2567440738706784
Volume
8.8516404860568E+21
Space diagonal
35829043.656696
Perimeter
62057724
Area
1.852890752026E+14
Altitude
17914521.828348
Surface area
1.852890752026E+14
Volume
1.043175835386E+21
Height
9751430.5478674