208431390 is an even 9-digits composite number following 208431389
and preceding 208431391 . In scientific notation, it is written as 2.08431390 × 10^8.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 52312064 positive integers (up to 208431390) that are relatively prime to 208431390.
208431390 has 16 divisors, whose sum is 421768080
The reverse of 208431390 is 093134802
Previous prime number is 85
Is Prime? no
Number parity even
Number length 9
Sum of Digits 30
Digital Root 3
Name
two hundred eight million four hundred thirty-one thousand three hundred ninety
Scientific notation
2.08431390 × 10^8
Engineering notation
2.08431390 × 10^6
Prime Factorization
2 × 3 × 85 × 408689
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
208431390
Product of the distinct prime numbers
The prime factorization of 208431390 is 2 × 3 × 85 × 408689.
Since it has a total of 4 prime factors.
6 , 6 , 65 , 1 , 821 , 713 , 4754 , 7077 , 63127 , 38945 , 987104 , 55608 , 4177334 , 6374462 , 97578227 , 79019950 , 172779874 , 785988744 , 5737783848 , 3873229025
n×2
416862780
n×3
625294170
n×4
833725560
n×5
1042156950
n÷2
104215695
n÷3
69477130
n÷3
52107847.5
n÷5
41686278
n2
43443644337332100
n3
9.0550191758958E+24
n4
1.8873502333086E+33
n5
3.9338303254534E+41
2 √n
14437.153112716
3 √n
592.90854338716
4 √n
120.15470491294
5 √n
46.10973486096
1 , 2 , 3 , 6 , 85 , 170 , 255 , 510 , 408689 , 817378 , 1226067 , 2452134 , 34738565 , 69477130 , 104215695 , 208431390
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-208431389
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 208431390 can be divided by 16 positive divisors.
The sum of these divisors (counting 208431390) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100011011000110100100011110
3
Ternary
112112012102010010
4
Quaternary
30123012210132
5
Quinary
411324301030
6
Senary
32403224050
8
Octal
1433064436
10
Decimal
208431390
12
Duodecimal
59978026
16
Hexadecimal
c6c691e
20
Vigesimal
352di9a
36
Base36
3g3eou
md5
1254bc19525dc8c3041bf7d252ed7b0c
sha1
5ef83858020516e2cea091186d6a3e0fd4c8dadd
sha256
87f5ca945d629de5ef4acb62568ebafd5134f5e203adc3b3cf6b0c4079f856db
sha512
7dc918691833e25b652cc02f04d69661c389baa4d314dbeb970b97346cd5590917960ae37bd4b9d6547a287f3617b11b3868fe1a7a4c5f3103caffae5e2f1a4f
ripemd-160
4bb7e3a47f7daa117ff18100b36d008953ab9f24
Diameter
416862780
Circumference
1309613047.203
Area
1.3648223389533E+17
Volume
3.7929575628145E+25
Surface area
5.4592893558132E+17
Circumference
1309613047.203
Perimeter
833725560
Area
43443644337332100
Diagonal
294766498.56228
Surface area
260661866023992600
Volume
9.0550191758958E+24
Space diagonal
361013757.3722
Perimeter
625294170
Area
1.8811649814553E+16
Altitude
180506878.6861
Surface area
1.8811649814553E+16
Volume
1.0671442438417E+24
Height
98255499.520759