20806431 is an odd 8-digits composite number following 20806430
and preceding 20806432 . In scientific notation, it is written as 2.0806431 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 13870952 positive integers (up to 20806431) that are relatively prime to 20806431.
20806431 has 4 divisors, whose sum is 27741912
The reverse of 20806431 is 13460802
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million eight hundred six thousand four hundred thirty-one
Scientific notation
2.0806431 × 10^7
Engineering notation
2.0806431 × 10^6
Prime Factorization
3 × 6935477
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20806431
Product of the distinct prime numbers
The prime factorization of 20806431 is 3 × 6935477.
Since it has a total of 2 prime factors.
1 , 10 , 28 , 1 , 863 , 263 , 4016 , 8044 , 79713 , 80770 , 834586 , 491863 , 9490065 , 4310324 , 73515445 , 72861224 , 798974146 , 16668635 , 7985357233 , 6106420207
n×2
41612862
n×3
62419293
n×4
83225724
n×5
104032155
n÷2
10403215.5
n÷3
6935477
n÷3
5201607.75
n÷5
4161286.2
n2
432907570957761
n3
9.0072615045103E+21
n4
1.8740896499255E+29
n5
3.8993116988989E+36
2 √n
4561.4066909233
3 √n
275.04211366055
4 √n
67.538186908765
5 √n
29.083021081828
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
-20806430
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 20806431 can be divided by 4 positive divisors.
The sum of these divisors (counting 20806431) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010111101100011111
3
Ternary
1110011002001120
4
Quaternary
1033113230133
5
Quinary
20311301211
6
Senary
2021542023
8
Octal
117275437
10
Decimal
20806431
12
Duodecimal
6b74913
16
Hexadecimal
13d7b1f
20
Vigesimal
6a0g1b
36
Base36
cdycf
md5
d65f3931fecda179c973638333e40f5d
sha1
b6c6707907e52b7cf44fd1ec98e9d5dc5668f1c4
sha256
e0bb6c7795e787d9b0d9943c7b538cbe580e05bc04bc0b42fe81022bbaf642a3
sha512
e4f46783dfd5a79e0c110bdb7702acf1406287d4cdd959456d2b3c3871a97a1a12b99aa3bc9dc0f8ddff1f95f64c9c2aa7bf5f08452236dcb4797d21c280c712
ripemd-160
def2be1f8c4b793e9f1fbdc0341f1d8f61830acd
Diameter
41612862
Circumference
130730661.55405
Area
1.3600192446043E+15
Volume
3.7729528762042E+22
Surface area
5.4400769784172E+15
Circumference
130730661.55405
Perimeter
83225724
Area
432907570957761
Diagonal
29424736.90478
Surface area
2597445425746566
Volume
9.0072615045103E+21
Space diagonal
36037795.616176
Perimeter
62419293
Area
1.8745447697002E+14
Altitude
18018897.808088
Surface area
1.8745447697002E+14
Volume
1.0615159482933E+21
Height
9808245.6349267