20471818 is an even 8-digits composite number following 20471817
and preceding 20471819 . In scientific notation, it is written as 2.0471818 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 10235908 positive integers (up to 20471818) that are relatively prime to 20471818.
20471818 has 4 divisors, whose sum is 30707730
The reverse of 20471818 is 81817402
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 seventy-one thousand eight hundred eighteen
Scientific notation
2.0471818 × 10^7
Engineering notation
2.0471818 × 10^6
Prime Factorization
2 × 10235909
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20471818
Product of the distinct prime numbers
The prime factorization of 20471818 is 2 × 10235909.
Since it has a total of 2 prime factors.
10 , 1 , 18 , 94 , 244 , 584 , 5363 , 6612 , 67491 , 36230 , 852168 , 755225 , 9336116 , 650255 , 81245126 , 56336307 , 46511345 , 288197506 , 9868952928 , 2711572728
n×2
40943636
n×3
61415454
n×4
81887272
n×5
102359090
n÷2
10235909
n÷3
6823939.3333333
n÷3
5117954.5
n÷5
4094363.6
n2
419095332225124
n3
8.5796433659623E+21
n4
1.7564089749289E+29
n5
3.595688486831E+36
2 √n
4524.5793174615
3 √n
273.55971165889
4 √n
67.264993254006
5 √n
28.988869713084
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
-20471817
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 20471818 can be divided by 4 positive divisors.
The sum of these divisors (counting 20471818) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110000110000000001010
3
Ternary
1102112002001111
4
Quaternary
1032012000022
5
Quinary
20220044233
6
Senary
2010440534
8
Octal
116060012
10
Decimal
20471818
12
Duodecimal
6a3314a
16
Hexadecimal
138600a
20
Vigesimal
67ijai
36
Base36
c6s5m
md5
68a57713c8ac9c7388250cc8be08168c
sha1
5682e52ab1b8e95c098805cd8dc4992bafbb8ea7
sha256
3b5ceddb27bce583918b65f6deee47d0e377aaf1ef54134686f0acd6944ca982
sha512
17202c33118859ad1d521084b647212c6e34a32910b6ae85f99dca747ca52789a639cf25767a2cd6d5dc0c9eebf14cdeb34ec58942d24debc44ed82f71588177
ripemd-160
94fb4823ea6e0cd85b8c830b9cd4b8095da54765
Diameter
40943636
Circumference
128628226.06885
Area
1.3166268168722E+15
Volume
3.5938326091903E+22
Surface area
5.2665072674889E+15
Circumference
128628226.06885
Perimeter
81887272
Area
419095332225124
Diagonal
28951522.662034
Surface area
2514571993350744
Volume
8.5796433659623E+21
Space diagonal
35458228.899303
Perimeter
61415454
Area
1.8147360215722E+14
Altitude
17729114.449652
Surface area
1.8147360215722E+14
Volume
1.0111206673723E+21
Height
9650507.5540112