20408818 is an even 8-digits composite number following 20408817
and preceding 20408819 . In scientific notation, it is written as 2.0408818 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 10204408 positive integers (up to 20408818) that are relatively prime to 20408818.
20408818 has 4 divisors, whose sum is 30613230
The reverse of 20408818 is 81880402
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million four hundred eight thousand eight hundred eighteen
Scientific notation
2.0408818 × 10^7
Engineering notation
2.0408818 × 10^6
Prime Factorization
2 × 10204409
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20408818
Product of the distinct prime numbers
The prime factorization of 20408818 is 2 × 10204409.
Since it has a total of 2 prime factors.
4 , 1 , 31 , 32 , 115 , 904 , 5782 , 4401 , 29442 , 32677 , 11792 , 492971 , 8774131 , 5442499 , 73820375 , 18408785 , 500766857 , 444612726 , 6272462126 , 3185287768
n×2
40817636
n×3
61226454
n×4
81635272
n×5
102044090
n÷2
10204409
n÷3
6802939.3333333
n÷3
5102204.5
n÷5
4081763.6
n2
416519852157124
n3
8.5006778560617E+21
n4
1.7348878724099E+29
n5
3.5407010838421E+36
2 √n
4517.6119797964
3 √n
273.27880563424
4 √n
67.213183080378
5 √n
28.971005632292
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
-20408817
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 20408818 can be divided by 4 positive divisors.
The sum of these divisors (counting 20408818) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110110100111110010
3
Ternary
1102101212122011
4
Quaternary
1031312213302
5
Quinary
20211040233
6
Senary
2005233134
8
Octal
115664762
10
Decimal
20408818
12
Duodecimal
6a027aa
16
Hexadecimal
13769f2
20
Vigesimal
67b20i
36
Base36
c5fjm
md5
8e985b292eaa81a19c29f78dd109c2df
sha1
6eb94f1f5d4035a9bec2bbf66d8f0d667d50c8f3
sha256
f7530ae4ec5b05d137891df0b6589f17cd957cb15a9aa019b0cc78f2259512bc
sha512
a8e3a0e878e387b30b5da54d1eb9503d058c9e36bb045eb10c7114c463aa26dda091765cd6e20b0577b73884223513da241181b3c200f722fc49d1f8467922a1
ripemd-160
879832bd964b882f44b9b326ca4f012d45f7ef76
Diameter
40817636
Circumference
128232385.3945
Area
1.3085357076111E+15
Volume
3.5607556137516E+22
Surface area
5.2341428304445E+15
Circumference
128232385.3945
Perimeter
81635272
Area
416519852157124
Diagonal
28862427.207604
Surface area
2499119112942744
Volume
8.5006778560617E+21
Space diagonal
35349109.698426
Perimeter
61226454
Area
1.803583865743E+14
Altitude
17674554.849213
Surface area
1.803583865743E+14
Volume
1.0018144927839E+21
Height
9620809.0692014