20804945 is an odd 8-digits composite number following 20804944
and preceding 20804946 . In scientific notation, it is written as 2.0804945 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 14266224 positive integers (up to 20804945) that are relatively prime to 20804945.
20804945 has 4 divisors, whose sum is 21399408
The reverse of 20804945 is 54940802
Previous prime number is 35
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million eight hundred four thousand nine hundred forty-five
Scientific notation
2.0804945 × 10^7
Engineering notation
2.0804945 × 10^6
Prime Factorization
35 × 594427
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20804945
Product of the distinct prime numbers
The prime factorization of 20804945 is 35 × 594427.
Since it has a total of 2 prime factors.
6 , 7 , 82 , 76 , 661 , 438 , 6395 , 8827 , 25309 , 17185 , 845275 , 566511 , 9357827 , 8199651 , 67028605 , 8025036 , 984377684 , 74204358 , 2867337725 , 5038615222
n×2
41609890
n×3
62414835
n×4
83219780
n×5
104024725
n÷2
10402472.5
n÷3
6934981.6666667
n÷3
5201236.25
n÷5
4160989
n2
432845736453025
n3
9.0053317403897E+21
n4
1.8735543156556E+29
n5
3.8979194491728E+36
2 √n
4561.2437996669
3 √n
275.03556564804
4 √n
67.536980978327
5 √n
29.082605646773
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
-20804944
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 20804945 can be divided by 4 positive divisors.
The sum of these divisors (counting 20804945) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010111010101010001
3
Ternary
1110011000000112
4
Quaternary
1033113111101
5
Quinary
20311224240
6
Senary
2021531105
8
Octal
117272521
10
Decimal
20804945
12
Duodecimal
6b73a95
16
Hexadecimal
13d7551
20
Vigesimal
6a0c75
36
Base36
cdx75
md5
4fcddb4f03065072b6a930a13a32e631
sha1
dab32149a10d1c2bbe18673d4dd9983078ecb361
sha256
0859abaa484b03a380256c7fd7f5478a4ba4ca033b18fc58c52c845ec5873619
sha512
aa975f256b0b54286f5d648e5295265774de74c90c9b820837e0173c7bdb2f85782208916cb0ec64d30ba3962ffb2749f11ff5be4bb9fa6915daa748890f637b
ripemd-160
e96723050ff7844b36d38869511ec6df54b382d9
Diameter
41609890
Circumference
130721324.74068
Area
1.3598249857785E+15
Volume
3.7721445384996E+22
Surface area
5.4392999431139E+15
Circumference
130721324.74068
Perimeter
83219780
Area
432845736453025
Diagonal
29422635.383426
Surface area
2597074418718150
Volume
9.0053317403897E+21
Space diagonal
36035221.788676
Perimeter
62414835
Area
1.8742770184405E+14
Altitude
18017610.894338
Surface area
1.8742770184405E+14
Volume
1.0612885234107E+21
Height
9807545.1278088