20213645 is an odd 8-digits composite number following 20213644
and preceding 20213646 . In scientific notation, it is written as 2.0213645 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 16170912 positive integers (up to 20213645) that are relatively prime to 20213645.
20213645 has 4 divisors, whose sum is 24256380
The reverse of 20213645 is 54631202
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million two hundred thirteen thousand six hundred forty-five
Scientific notation
2.0213645 × 10^7
Engineering notation
2.0213645 × 10^6
Prime Factorization
5 × 4042729
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20213645
Product of the distinct prime numbers
The prime factorization of 20213645 is 5 × 4042729.
Since it has a total of 2 prime factors.
8 , 9 , 38 , 87 , 702 , 60 , 9928 , 2578 , 44066 , 1747 , 856796 , 856559 , 8580295 , 2152042 , 57706526 , 25237486 , 793310277 , 37719948 , 5827252672 , 6580689465
n×2
40427290
n×3
60640935
n×4
80854580
n×5
101068225
n÷2
10106822.5
n÷3
6737881.6666667
n÷3
5053411.25
n÷5
4042729
n2
408591444186025
n3
8.2591224028136E+21
n4
1.6694696826202E+29
n5
3.3746067502748E+36
2 √n
4495.9587409139
3 √n
272.40487659846
4 √n
67.051910792414
5 √n
28.915381514695
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
-20213644
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 20213645 can be divided by 4 positive divisors.
The sum of these divisors (counting 20213645) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000110111110001101
3
Ternary
1102000221220112
4
Quaternary
1031012332031
5
Quinary
20133314040
6
Senary
2001125405
8
Octal
115067615
10
Decimal
20213645
12
Duodecimal
6929865
16
Hexadecimal
1346f8d
20
Vigesimal
666e25
36
Base36
c18y5
md5
0cf01a95be3ad5060bde19332b137ad1
sha1
8a3f626821704d63d045625f4abb40719da3a765
sha256
2914fc2097b7732e615521c38d38a5ffee3653ad5a0cd0e1820753c8c84aed21
sha512
3174f98eca113ce570028e5fe6549aa4a812e0967f94fce388137a9d1c18bcef1ac2919e7700377d51d411ba6f7b19a16fa7463f82bc7d2bd1a3b6f739d707ff
ripemd-160
cd90de96dc676168426b58b4bd05d220f63bea68
Diameter
40427290
Circumference
127006077.26854
Area
1.2836278793745E+15
Volume
3.4595731021038E+22
Surface area
5.1345115174978E+15
Circumference
127006077.26854
Perimeter
80854580
Area
408591444186025
Diagonal
28586410.903995
Surface area
2451548665116150
Volume
8.2591224028136E+21
Space diagonal
35011060.146161
Perimeter
60640935
Area
1.7692528521703E+14
Altitude
17505530.07308
Surface area
1.7692528521703E+14
Volume
9.7334690961321E+20
Height
9528803.634665