20120809 is an odd 8-digits composite number following 20120808
and preceding 20120810 . In scientific notation, it is written as 2.0120809 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 18283776 positive integers (up to 20120809) that are relatively prime to 20120809.
20120809 has 8 divisors, whose sum is 22039560
The reverse of 20120809 is 90802102
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred twenty thousand eight hundred nine
Scientific notation
2.0120809 × 10^7
Engineering notation
2.0120809 × 10^6
Prime Factorization
17 × 29 × 40813
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20120809
Product of the distinct prime numbers
The prime factorization of 20120809 is 17 × 29 × 40813.
Since it has a total of 3 prime factors.
6 , 10 , 36 , 8 , 344 , 80 , 2503 , 1715 , 20052 , 88989 , 79920 , 177334 , 1697138 , 1820653 , 65117913 , 154842 , 488525637 , 875555169 , 4751014447 , 7638389189
n×2
40241618
n×3
60362427
n×4
80483236
n×5
100604045
n÷2
10060404.5
n÷3
6706936.3333333
n÷3
5030202.25
n÷5
4024161.8
n2
404846954814481
n3
8.1458482520538E+21
n4
1.6390105682256E+29
n5
3.2978218592248E+36
2 √n
4485.6224763125
3 √n
271.98720834452
4 √n
66.974789856427
5 √n
28.888772424946
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20120808
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20120809 can be divided by 8 positive divisors.
The sum of these divisors (counting 20120809) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000010011101001
3
Ternary
1101212020120011
4
Quaternary
1030300103221
5
Quinary
20122331214
6
Senary
1555131521
8
Octal
114602351
10
Decimal
20120809
12
Duodecimal
68a3ba1
16
Hexadecimal
13304e9
20
Vigesimal
65f209
36
Base36
bz9bd
md5
0da539043cb2cf5a5330bf89212d582a
sha1
90b8ed70b0b27b21349bb1e4e3464d9ba5b039ce
sha256
5c22a91ed61c7009eee98ede3f244c241f8412876afe08190c602cff0efd643c
sha512
91be3171760f12a6dbfbb3901c85165095211f77f94310146ebb12317483369f7d34acaa368b0cf2031216cf7d530d2dc76f3e212be4c6bab23b8c2c99cffd0d
ripemd-160
4d3ea005a79183bcaf481cd385b840410a8d6a18
Diameter
40241618
Circumference
126422771.47737
Area
1.2718642190734E+15
Volume
3.4121249367879E+22
Surface area
5.0874568762935E+15
Circumference
126422771.47737
Perimeter
80483236
Area
404846954814481
Diagonal
28455120.973719
Surface area
2429081728886886
Volume
8.1458482520538E+21
Space diagonal
34850263.477389
Perimeter
60362427
Area
1.7530387375706E+14
Altitude
17425131.738695
Surface area
1.7530387375706E+14
Volume
9.5999742292397E+20
Height
9485040.3245729