20853821 is an odd 8-digits prime number following 20853820
and preceding 20853822 . In scientific notation, it is written as 2.0853821 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 20853820 positive integers (up to 20853821) that are relatively prime to 20853821.
20853821 has 2 divisors, whose sum is 20853822
The reverse of 20853821 is 12835802
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million eight hundred fifty-three thousand eight hundred twenty-one
Scientific notation
2.0853821 × 10^7
Engineering notation
2.0853821 × 10^6
Prime Factorization
20853821
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20853821
Product of the distinct prime numbers
The prime factorization of 20853821 is 20853821.
Since it has a total of 1 prime factors.
4 , 3 , 68 , 74 , 412 , 569 , 2622 , 7293 , 88944 , 36596 , 274325 , 601978 , 956385 , 1584670 , 42631060 , 6763876 , 464406086 , 808818294 , 8691194410 , 7155203334
n×2
41707642
n×3
62561463
n×4
83415284
n×5
104269105
n÷2
10426910.5
n÷3
6951273.6666667
n÷3
5213455.25
n÷5
4170764.2
n2
434881850300041
n3
9.0689482623059E+21
n4
1.8912222372039E+29
n5
3.9439210005869E+36
2 √n
4566.5984058159
3 √n
275.2507729032
4 √n
67.576611381571
5 √n
29.096257281855
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20853822
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10426911
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4566.5985153066
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999040943
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20853821 can be divided by 2 positive divisors.
The sum of these divisors (counting 20853821) is 20853822, the average is 10426911.
Base
System
Value
2
Binary
1001111100011010000111101
3
Ternary
1110020111001202
4
Quaternary
1033203100331
5
Quinary
20314310241
6
Senary
2022545245
8
Octal
117432075
10
Decimal
20853821
12
Duodecimal
6b98225
16
Hexadecimal
13e343d
20
Vigesimal
6a6eb1
36
Base36
ceywt
md5
fda9e248118dbc42518936d31c9c275b
sha1
86faaa2e8aa9b2ed425270e7f8d0553824ad0808
sha256
e4f9448990b789853bd65e72a02ab3a19f9c245b539ffdec5051617dd167c1ac
sha512
e73b2ef4ea7b25c11a25b40473bf2edf24863de7f6dd8bbe43079c6fa8ec18f406c7bcc5763633fe86f196f543d58fa9e3d58d0e7fb49b9c46451e0248180d07
ripemd-160
7b94e1bb99ae0c1b761e49bdd3f4d4621772f1e0
Diameter
41707642
Circumference
131028421.70575
Area
1.3662216260821E+15
Volume
3.7987921648861E+22
Surface area
5.4648865043286E+15
Circumference
131028421.70575
Perimeter
83415284
Area
434881850300041
Diagonal
29491756.485501
Surface area
2609291101800246
Volume
9.0689482623059E+21
Space diagonal
36119877.503947
Perimeter
62561463
Area
1.8830936500231E+14
Altitude
18059938.751973
Surface area
1.8830936500231E+14
Volume
1.0687858024177E+21
Height
9830585.495167