20512018 is an even 8-digits composite number following 20512017
and preceding 20512019 . In scientific notation, it is written as 2.0512018 × 10^7.
The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors.
There are 9925140 positive integers (up to 20512018) that are relatively prime to 20512018.
20512018 has 8 divisors, whose sum is 31760640
The reverse of 20512018 is 81021502
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million five hundred twelve thousand eighteen
Scientific notation
2.0512018 × 10^7
Engineering notation
2.0512018 × 10^6
Prime Factorization
2 × 31 × 330839
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20512018
Product of the distinct prime numbers
The prime factorization of 20512018 is 2 × 31 × 330839.
Since it has a total of 3 prime factors.
7 , 10 , 33 , 40 , 58 , 365 , 6413 , 571 , 30236 , 63969 , 242312 , 307744 , 6667829 , 8575963 , 3463182 , 95737830 , 780379018 , 212322690 , 8889859086 , 7372950577
n×2
41024036
n×3
61536054
n×4
82048072
n×5
102560090
n÷2
10256009
n÷3
6837339.3333333
n÷3
5128004.5
n÷5
4102403.6
n2
420742882432324
n3
8.6302855778237E+21
n4
1.7702457311746E+29
n5
3.6311312302277E+36
2 √n
4529.0195406953
3 √n
273.73865538219
4 √n
67.297990614099
5 √n
29.000245725609
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20512017
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20512018 can be divided by 8 positive divisors.
The sum of these divisors (counting 20512018) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001111110100010010
3
Ternary
1102121010012101
4
Quaternary
1032033310102
5
Quinary
20222341033
6
Senary
2011351014
8
Octal
116176422
10
Decimal
20512018
12
Duodecimal
6a5246a
16
Hexadecimal
138fd12
20
Vigesimal
68400i
36
Base36
c7n6a
md5
376f3cd0b4c0a0f6b6d915aa808d0388
sha1
eac10494353b9f89a108bd6b63b8a8e9ed59c5ac
sha256
569b99c7ae6dca1d5b543b6810702be9fcea641b7e5800c380d00c743c8f204f
sha512
8ebab04f6a8093dbeb4a3815c08a7a2b67666cc7967dcd0aa9019c3e598d9c73e7e2b276d7daf6561d966bedc6dc757dd8280651442b84e0d80bb94036c6fff9
ripemd-160
1de635cb2570fe66968a304ee31552f56e08374d
Diameter
41024036
Circumference
128880810.1182
Area
1.3218027484996E+15
Volume
3.6150455692897E+22
Surface area
5.2872109939983E+15
Circumference
128880810.1182
Perimeter
82048072
Area
420742882432324
Diagonal
29008374.047241
Surface area
2524457294593944
Volume
8.6302855778237E+21
Space diagonal
35527857.341767
Perimeter
61536054
Area
1.8218701232394E+14
Altitude
17763928.670884
Surface area
1.8218701232394E+14
Volume
1.0170889092759E+21
Height
9669458.015747