20130809 is an odd 8-digits composite number following 20130808
and preceding 20130810 . In scientific notation, it is written as 2.0130809 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 20054004 positive integers (up to 20130809) that are relatively prime to 20130809.
20130809 has 4 divisors, whose sum is 20207616
The reverse of 20130809 is 90803102
Previous prime number is 263
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred thirty thousand eight hundred nine
Scientific notation
2.0130809 × 10^7
Engineering notation
2.0130809 × 10^6
Prime Factorization
263 × 76543
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20130809
Product of the distinct prime numbers
The prime factorization of 20130809 is 263 × 76543.
Since it has a total of 2 prime factors.
5 , 5 , 38 , 7 , 925 , 554 , 6802 , 3330 , 19862 , 31359 , 964280 , 114197 , 606165 , 8112031 , 72064567 , 56448395 , 359737559 , 259894657 , 5184108319 , 2705400777
n×2
40261618
n×3
60392427
n×4
80523236
n×5
100654045
n÷2
10065404.5
n÷3
6710269.6666667
n÷3
5032702.25
n÷5
4026161.8
n2
405249470994481
n3
8.1579996979409E+21
n4
1.6422713374131E+29
n5
3.3060250619637E+36
2 √n
4486.737010345
3 √n
272.03225990644
4 √n
66.983109888576
5 √n
28.891643386155
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20130808
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20130809 can be divided by 4 positive divisors.
The sum of these divisors (counting 20130809) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110010101111111001
3
Ternary
1101212202021112
4
Quaternary
1030302233321
5
Quinary
20123141214
6
Senary
1555250105
8
Octal
114625771
10
Decimal
20130809
12
Duodecimal
68a9935
16
Hexadecimal
1332bf9
20
Vigesimal
65g709
36
Base36
bzh15
md5
8c1c745268a4b370e667f216290b7a34
sha1
75e3b25ae2c96b9a9bf404b9f90c0be327c6b4ad
sha256
a5893e2eb2145276e97d8fb2b76649fd069689ab577245e64a2daca3e992596e
sha512
a8627b32ef9155d372bdc8b510b961a5c657b34975f9433444dab0c1c05d55662ff32eae442e2f40c991643423f9917e0512e8a411a4da99ffbd7be0feeb5527
ripemd-160
9cc55596b5744be8f1fea469ebdb25859b87efad
Diameter
40261618
Circumference
126485603.33044
Area
1.2731287609474E+15
Volume
3.4172149225385E+22
Surface area
5.0925150437896E+15
Circumference
126485603.33044
Perimeter
80523236
Area
405249470994481
Diagonal
28469263.109342
Surface area
2431496825966886
Volume
8.1579996979409E+21
Space diagonal
34867583.985465
Perimeter
60392427
Area
1.7547816837571E+14
Altitude
17433791.992732
Surface area
1.7547816837571E+14
Volume
9.6142948455531E+20
Height
9489754.3697808