20804915 is an odd 8-digits composite number following 20804914
and preceding 20804916 . In scientific notation, it is written as 2.0804915 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 16193952 positive integers (up to 20804915) that are relatively prime to 20804915.
20804915 has 8 divisors, whose sum is 25640880
The reverse of 20804915 is 51940802
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million eight hundred four thousand nine hundred fifteen
Scientific notation
2.0804915 × 10^7
Engineering notation
2.0804915 × 10^6
Prime Factorization
5 × 37 × 112459
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20804915
Product of the distinct prime numbers
The prime factorization of 20804915 is 5 × 37 × 112459.
Since it has a total of 3 prime factors.
10 , 3 , 91 , 100 , 178 , 649 , 529 , 5069 , 76296 , 84913 , 228470 , 679111 , 5993288 , 4377728 , 33928893 , 33592212 , 235865660 , 165987016 , 7735620150 , 1694717373
n×2
41609830
n×3
62414745
n×4
83219660
n×5
104024575
n÷2
10402457.5
n÷3
6934971.6666667
n÷3
5201228.75
n÷5
4160983
n2
432844488157225
n3
9.0052927843296E+21
n4
1.8735435092809E+29
n5
3.8978913459391E+36
2 √n
4561.2405110891
3 √n
275.03543345077
4 √n
67.536956631825
5 √n
29.082597259549
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20804914
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20804915 can be divided by 8 positive divisors.
The sum of these divisors (counting 20804915) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010111010100110011
3
Ternary
1110010222222102
4
Quaternary
1033113110303
5
Quinary
20311224130
6
Senary
2021531015
8
Octal
117272463
10
Decimal
20804915
12
Duodecimal
6b73a6b
16
Hexadecimal
13d7533
20
Vigesimal
6a0c5f
36
Base36
cdx6b
md5
e60565e31e74c57f7c00139e499a0a9c
sha1
2d880ae89a656d6b91d4341d0d21052a9770c2d8
sha256
74f9531282c83bc43a03eddb66eee6a230b9acbdec2546ddb38de6d322d2edfe
sha512
356fde4ce70d77113b67f2da4af45fba858f458899edf0aef205d5df6261b9b2d77e9fa72732cb618069d3f674d000633876631da83e8910eb7489e4be1c26ce
ripemd-160
4083821b28c5f24e66aa61747538a1f234bede46
Diameter
41609830
Circumference
130721136.24512
Area
1.3598210641416E+15
Volume
3.7721282206233E+22
Surface area
5.4392842565663E+15
Circumference
130721136.24512
Perimeter
83219660
Area
432844488157225
Diagonal
29422592.957019
Surface area
2597066928943350
Volume
9.0052927843296E+21
Space diagonal
36035169.827152
Perimeter
62414745
Area
1.8742716131611E+14
Altitude
18017584.913576
Surface area
1.8742716131611E+14
Volume
1.061283932395E+21
Height
9807530.9856731