20308813 is an odd 8-digits composite number following 20308812
and preceding 20308814 . In scientific notation, it is written as 2.0308813 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors.
There are 16840440 positive integers (up to 20308813) that are relatively prime to 20308813.
20308813 has 12 divisors, whose sum is 23990880
The reverse of 20308813 is 31880302
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million three hundred eight thousand eight hundred thirteen
Scientific notation
2.0308813 × 10^7
Engineering notation
2.0308813 × 10^6
Prime Factorization
7 × 31 × 31 × 3019
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
655123
Product of the distinct prime numbers
The prime factorization of 20308813 is 7 × 31 × 31 × 3019.
Since it has a total of 4 prime factors.
4 , 8 , 73 , 4 , 816 , 966 , 176 , 2280 , 44640 , 73991 , 234207 , 596752 , 2533862 , 536424 , 67972963 , 84720529 , 260360465 , 962676669 , 1573199187 , 6659020688
n×2
40617626
n×3
60926439
n×4
81235252
n×5
101544065
n÷2
10154406.5
n÷3
6769604.3333333
n÷3
5077203.25
n÷5
4061762.6
n2
412447885468969
n3
8.3763269782347E+21
n4
1.7011325822782E+29
n5
3.4547983501696E+36
2 √n
4506.5300398422
3 √n
272.83171118967
4 √n
67.130693723826
5 √n
28.94255772439
1 , 7 , 31 , 217 , 961 , 3019 , 6727 , 21133 , 93589 , 655123 , 2901259 , 20308813
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
-20308812
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 20308813 can be divided by 12 positive divisors.
The sum of these divisors (counting 20308813) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101011110001101001101
3
Ternary
1102012210110021
4
Quaternary
1031132031031
5
Quinary
20144340223
6
Senary
2003142141
8
Octal
115361515
10
Decimal
20308813
12
Duodecimal
6974951
16
Hexadecimal
135e34d
20
Vigesimal
66ic0d
36
Base36
c3adp
md5
a80da5038d80da12769328854477dcbd
sha1
7cbe747da64451cb606577243d1f484c39c26198
sha256
1587a97900ccb9802769f86b1349556c4fe56689022322c49d125108a6a15255
sha512
3889ee2edfcc2d70e7916a1702541c97697412dbe0ee54c33512c2eb9e3798928f6570a64322076763ef924f61a153451b052a41e16548a8e212c4d3152ca04e
ripemd-160
4381f3b194d7e1191cefe71648d0582380524f81
Diameter
40617626
Circumference
127604035.44786
Area
1.295743246978E+15
Volume
3.5086676398518E+22
Surface area
5.1829729879118E+15
Circumference
127604035.44786
Perimeter
81235252
Area
412447885468969
Diagonal
28720998.780299
Surface area
2474687312813814
Volume
8.3763269782347E+21
Space diagonal
35175895.957415
Perimeter
60926439
Area
1.7859517327665E+14
Altitude
17587947.978708
Surface area
1.7859517327665E+14
Volume
9.8715960129093E+20
Height
9573666.2600997