20804918 is an even 8-digits composite number following 20804917
and preceding 20804919 . In scientific notation, it is written as 2.0804918 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 10402458 positive integers (up to 20804918) that are relatively prime to 20804918.
20804918 has 4 divisors, whose sum is 31207380
The reverse of 20804918 is 81940802
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million eight hundred four thousand nine hundred eighteen
Scientific notation
2.0804918 × 10^7
Engineering notation
2.0804918 × 10^6
Prime Factorization
2 × 10402459
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20804918
Product of the distinct prime numbers
The prime factorization of 20804918 is 2 × 10402459.
Since it has a total of 2 prime factors.
7 , 2 , 44 , 28 , 34 , 609 , 3728 , 7731 , 45165 , 37680 , 900778 , 998860 , 1327985 , 4953496 , 21553062 , 3805751 , 905179064 , 353364970 , 5370607607 , 7670130135
n×2
41609836
n×3
62414754
n×4
83219672
n×5
104024590
n÷2
10402459
n÷3
6934972.6666667
n÷3
5201229.5
n÷5
4160983.6
n2
432844612986724
n3
9.0052966799305E+21
n4
1.8735445899163E+29
n5
3.8978941562552E+36
2 √n
4561.240839947
3 √n
275.0354466705
4 √n
67.536959066477
5 √n
29.082598098272
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
-20804917
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 20804918 can be divided by 4 positive divisors.
The sum of these divisors (counting 20804918) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010111010100110110
3
Ternary
1110010222222112
4
Quaternary
1033113110312
5
Quinary
20311224133
6
Senary
2021531022
8
Octal
117272466
10
Decimal
20804918
12
Duodecimal
6b73a72
16
Hexadecimal
13d7536
20
Vigesimal
6a0c5i
36
Base36
cdx6e
md5
c0aa897a1891e72ae539eb375d2f95f9
sha1
6b1d418895e050b790a39d24c46a464de571ca23
sha256
0a7204772b1b3c89af87ad05ef82d66d08269302e589a412806482287b507a48
sha512
9cf6fb1eecb74f7f0c9bffb231dd19f3db98492f031abd7a6a15cf96a34c6b55e78f557ea1049f3ecd115c46abf383ef14ba21b1d7ddd868de942804406a8227
ripemd-160
74963766b3019bebabc11846ae44b14bb585e89c
Diameter
41609836
Circumference
130721155.09468
Area
1.359821456305E+15
Volume
3.7721298524088E+22
Surface area
5.43928582522E+15
Circumference
130721155.09468
Perimeter
83219672
Area
432844612986724
Diagonal
29422597.19966
Surface area
2597067677920344
Volume
9.0052966799305E+21
Space diagonal
36035175.023304
Perimeter
62414754
Area
1.8742721536887E+14
Altitude
18017587.511652
Surface area
1.8742721536887E+14
Volume
1.0612843914959E+21
Height
9807532.3998867