20385904 is an even 8-digits composite number following 20385903
and preceding 20385905 . In scientific notation, it is written as 2.0385904 × 10^7.
The sum of its digits is 31. It has a total of 6 prime factors and 20 positive divisors.
There are 7942080 positive integers (up to 20385904) that are relatively prime to 20385904.
20385904 has 20 divisors, whose sum is 40013064
The reverse of 20385904 is 40958302
Previous prime number is 77
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million three hundred eighty-five thousand nine hundred four
Scientific notation
2.0385904 × 10^7
Engineering notation
2.0385904 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 77 × 16547
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
2548238
Product of the distinct prime numbers
The prime factorization of 20385904 is 2 × 2 × 2 × 2 × 77 × 16547.
Since it has a total of 6 prime factors.
9 , 7 , 69 , 46 , 266 , 89 , 2559 , 6095 , 41186 , 8944 , 662036 , 582485 , 7520246 , 1447489 , 3938975 , 89024034 , 454352345 , 778258934 , 1216377848 , 8154507326
n×2
40771808
n×3
61157712
n×4
81543616
n×5
101929520
n÷2
10192952
n÷3
6795301.3333333
n÷3
5096476
n÷5
4077180.8
n2
415585081897216
n3
8.4720775833888E+21
n4
1.7271096029552E+29
n5
3.5208690563322E+36
2 √n
4515.0751931723
3 √n
273.1764927429
4 √n
67.19430923205
5 √n
28.964497269531
1 , 2 , 4 , 8 , 16 , 77 , 154 , 308 , 616 , 1232 , 16547 , 33094 , 66188 , 132376 , 264752 , 1274119 , 2548238 , 5096476 , 10192952 , 20385904
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20385903
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20385904 can be divided by 20 positive divisors.
The sum of these divisors (counting 20385904) is 1, the average is 0.05.
Base
System
Value
2
Binary
1001101110001000001110000
3
Ternary
1102100201012111
4
Quaternary
1031301001300
5
Quinary
20204322104
6
Senary
2004535104
8
Octal
115610160
10
Decimal
20385904
12
Duodecimal
69b1494
16
Hexadecimal
1371070
20
Vigesimal
6784f4
36
Base36
c4xv4
md5
e5f255f7aa8657cdee2a71c326210387
sha1
a77e3405c2ea6ca51c8ed4f76c929d9faa7f311b
sha256
e0d62f6bb3e9c26f985bba0a87e676b040bbd2dff43ff7476033690928a413c7
sha512
f1cf48c8a9e199812c051afd7e7a2b5c7ec85418bd745a875ebf5463925701e944aeb6e4c0fd7a64cf57b55ae6b49ca726df967aaf83a630b83845f2b67bd5b2
ripemd-160
364397b9a7cd67824836b668b71ca4974e94383d
Diameter
40771808
Circumference
128088412.48637
Area
1.3055990402298E+15
Volume
3.5487755595489E+22
Surface area
5.2223961609192E+15
Circumference
128088412.48637
Perimeter
81543616
Area
415585081897216
Diagonal
28830021.918036
Surface area
2493510491383296
Volume
8.4720775833888E+21
Space diagonal
35309421.486222
Perimeter
61157712
Area
1.7995361917841E+14
Altitude
17654710.743111
Surface area
1.7995361917841E+14
Volume
9.9844391832546E+20
Height
9610007.306012