20406491 is an odd 8-digits composite number following 20406490
and preceding 20406492 . In scientific notation, it is written as 2.0406491 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 6 positive divisors.
There are 17491236 positive integers (up to 20406491) that are relatively prime to 20406491.
20406491 has 6 divisors, whose sum is 23738220
The reverse of 20406491 is 19460402
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million four hundred six thousand four hundred ninety-one
Scientific notation
2.0406491 × 10^7
Engineering notation
2.0406491 × 10^6
Prime Factorization
7 × 7 × 416459
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2915213
Product of the distinct prime numbers
The prime factorization of 20406491 is 7 × 7 × 416459.
Since it has a total of 3 prime factors.
3 , 5 , 56 , 89 , 253 , 476 , 2478 , 8791 , 83081 , 71311 , 715279 , 824108 , 8015592 , 7674239 , 51322178 , 30747953 , 789194049 , 301142418 , 9563826603 , 2391521193
n×2
40812982
n×3
61219473
n×4
81625964
n×5
102032455
n÷2
10203245.5
n÷3
6802163.6666667
n÷3
5101622.75
n÷5
4081298.2
n2
416424874933081
n3
8.497770462498E+21
n4
1.7340967646303E+29
n5
3.5386830020558E+36
2 √n
4517.3544248819
3 √n
273.26841888293
4 √n
67.211267097726
5 √n
28.970344951159
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20406490
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20406491 can be divided by 6 positive divisors.
The sum of these divisors (counting 20406491) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001101110110000011011011
3
Ternary
1102101202102222
4
Quaternary
1031312003123
5
Quinary
20211001431
6
Senary
2005214255
8
Octal
115660333
10
Decimal
20406491
12
Duodecimal
6a0138b
16
Hexadecimal
13760db
20
Vigesimal
67ag4b
36
Base36
c5dqz
md5
3007e4632cce89b9633ddfe5c26b7a54
sha1
e662fec807e3695280ae67c30d87544ac6b5a116
sha256
46a10ed087d514ef9e02cd0447c56cbcc692cb8a85dc94739bf5099822810de8
sha512
52b95b9bf1699a2958c236708e45b3dba41c954b002dc4a5232ddf3a356330a637ca5b0c201f46d0ca84c27c6b01c6977f26c3a6e88a330b874bc5f317e23681
ripemd-160
d9eb34d5c14a9cb3d208073f590593601b1e63ae
Diameter
40812982
Circumference
128217764.42229
Area
1.3082373278618E+15
Volume
3.5595377675835E+22
Surface area
5.2329493114473E+15
Circumference
128217764.42229
Perimeter
81625964
Area
416424874933081
Diagonal
28859136.332645
Surface area
2498549249598486
Volume
8.497770462498E+21
Space diagonal
35345079.216197
Perimeter
61219473
Area
1.803172602299E+14
Altitude
17672539.608099
Surface area
1.803172602299E+14
Volume
1.0014718531665E+21
Height
9619712.1108815