20809766 is an even 8-digits composite number following 20809765
and preceding 20809767 . In scientific notation, it is written as 2.0809766 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 10404882 positive integers (up to 20809766) that are relatively prime to 20809766.
20809766 has 4 divisors, whose sum is 31214652
The reverse of 20809766 is 66790802
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million eight hundred nine thousand seven hundred sixty-six
Scientific notation
2.0809766 × 10^7
Engineering notation
2.0809766 × 10^6
Prime Factorization
2 × 10404883
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20809766
Product of the distinct prime numbers
The prime factorization of 20809766 is 2 × 10404883.
Since it has a total of 2 prime factors.
2 , 2 , 37 , 6 , 34 , 367 , 7232 , 6640 , 62600 , 29014 , 188473 , 8485 , 8239018 , 3670000 , 83981851 , 64473916 , 346605129 , 426355157 , 8371861345 , 5523844167
n×2
41619532
n×3
62429298
n×4
83239064
n×5
104048830
n÷2
10404883
n÷3
6936588.6666667
n÷3
5202441.5
n÷5
4161953.2
n2
433046360974756
n3
9.0115934390362E+21
n4
1.8752915075348E+29
n5
3.9024377453586E+36
2 √n
4561.7722433282
3 √n
275.05680809878
4 √n
67.540893119119
5 √n
29.083953347984
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
-20809765
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 20809766 can be divided by 4 positive divisors.
The sum of these divisors (counting 20809766) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111011000100000100110
3
Ternary
1110011020122002
4
Quaternary
1033120200212
5
Quinary
20311403031
6
Senary
2022005302
8
Octal
117304046
10
Decimal
20809766
12
Duodecimal
6b76832
16
Hexadecimal
13d8826
20
Vigesimal
6a1486
36
Base36
ce0x2
md5
1de75027a2eee4b2b4b9a1aa4adad786
sha1
903ef0b5d065f28fc41255e2093285a8ea7c6b0e
sha256
d28265254d0cfe450aa391c45e73ccae3031973d13a38894373433ddbcfda231
sha512
fc0e594773c64ebbefd33193cb2d73faa1fef938e7c4469f8989b26365ab52d79f91eb99e95e79acdaa3bd1392e84702101de23c5081f1d87ffbe41643dc7a88
ripemd-160
e4395a46c134b76da1ba6be5906c083822c2a0a1
Diameter
41619532
Circumference
130751615.97705
Area
1.3604552663021E+15
Volume
3.7747674326952E+22
Surface area
5.4418210652083E+15
Circumference
130751615.97705
Perimeter
83239064
Area
433046360974756
Diagonal
29429453.307011
Surface area
2598278165848536
Volume
9.0115934390362E+21
Space diagonal
36043572.005619
Perimeter
62429298
Area
1.8751457481027E+14
Altitude
18021786.00281
Surface area
1.8751457481027E+14
Volume
1.0620264716731E+21
Height
9809817.7690035