20808618 is an even 8-digits composite number following 20808617
and preceding 20808619 . In scientific notation, it is written as 2.0808618 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 6920240 positive integers (up to 20808618) that are relatively prime to 20808618.
20808618 has 16 divisors, whose sum is 41713056
The reverse of 20808618 is 81680802
Previous prime number is 461
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million eight hundred eight thousand six hundred eighteen
Scientific notation
2.0808618 × 10^7
Engineering notation
2.0808618 × 10^6
Prime Factorization
2 × 3 × 461 × 7523
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20808618
Product of the distinct prime numbers
The prime factorization of 20808618 is 2 × 3 × 461 × 7523.
Since it has a total of 4 prime factors.
3 , 6 , 55 , 14 , 929 , 514 , 207 , 4373 , 5266 , 84162 , 650 , 465458 , 7319454 , 5371634 , 9073056 , 35905171 , 926406264 , 182427195 , 7553835865 , 843152381
n×2
41617236
n×3
62425854
n×4
83234472
n×5
104043090
n÷2
10404309
n÷3
6936206
n÷3
5202154.5
n÷5
4161723.6
n2
432998583069924
n3
9.0101021096433E+21
n4
1.8748777294056E+29
n5
3.9013614467909E+36
2 √n
4561.646413303
3 √n
275.05175004058
4 √n
67.539961602765
5 √n
29.083632449468
1 , 2 , 3 , 6 , 461 , 922 , 1383 , 2766 , 7523 , 15046 , 22569 , 45138 , 3468103 , 6936206 , 10404309 , 20808618
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
-20808617
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 20808618 can be divided by 16 positive divisors.
The sum of these divisors (counting 20808618) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111011000001110101010
3
Ternary
1110011012001120
4
Quaternary
1033120032222
5
Quinary
20311333433
6
Senary
2022000110
8
Octal
117301652
10
Decimal
20808618
12
Duodecimal
6b76036
16
Hexadecimal
13d83aa
20
Vigesimal
6a11ai
36
Base36
ce016
md5
7fae7fdffdf8b641202d78f88e55155a
sha1
63225abc14dc2b666120b6980c3b1dafea789f94
sha256
46753b025236ac89b7e7a759346f85e2710310f00833e1ab7134b0eccd0e2769
sha512
2ba7375396f14a770a6b121844ffdceaef34ca4df054bbe0fccefacdcb429ea57296ed95d83f4007981be8e488cde04f626f4d68bac5370907b90981a26b88e3
ripemd-160
a127e080f8f406c2ef007713b6ca668d74e7553f
Diameter
41617236
Circumference
130744402.88031
Area
1.3603051675873E+15
Volume
3.7741427460999E+22
Surface area
5.4412206703491E+15
Circumference
130744402.88031
Perimeter
83234472
Area
432998583069924
Diagonal
29427829.789841
Surface area
2597991498419544
Volume
9.0101021096433E+21
Space diagonal
36041583.611292
Perimeter
62425854
Area
1.8749388637061E+14
Altitude
18020791.805646
Surface area
1.8749388637061E+14
Volume
1.0618507168187E+21
Height
9809276.5966136