20508765 is an odd 8-digits composite number following 20508764
and preceding 20508766 . In scientific notation, it is written as 2.0508765 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 10919232 positive integers (up to 20508765) that are relatively prime to 20508765.
20508765 has 8 divisors, whose sum is 21913600
The reverse of 20508765 is 56780502
Previous prime number is 1069
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million five hundred eight thousand seven hundred sixty-five
Scientific notation
2.0508765 × 10^7
Engineering notation
2.0508765 × 10^6
Prime Factorization
15 × 1069 × 1279
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20508765
Product of the distinct prime numbers
The prime factorization of 20508765 is 15 × 1069 × 1279.
Since it has a total of 3 prime factors.
8 , 10 , 28 , 87 , 77 , 902 , 4437 , 4531 , 9885 , 19113 , 231467 , 135864 , 2935913 , 2321664 , 94606133 , 93049084 , 944101776 , 845936892 , 1127162292 , 6200856079
n×2
41017530
n×3
61526295
n×4
82035060
n×5
102543825
n÷2
10254382.5
n÷3
6836255
n÷3
5127191.25
n÷5
4101753
n2
420609441825225
n3
8.6261801991747E+21
n4
1.7691230255253E+29
n5
3.6282528386587E+36
2 √n
4528.6603979543
3 √n
273.72418388353
4 √n
67.295322259087
5 √n
28.999325837724
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
-20508764
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 20508765 can be divided by 8 positive divisors.
The sum of these divisors (counting 20508765) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001111000001011101
3
Ternary
1102120221201220
4
Quaternary
1032033001131
5
Quinary
20222240030
6
Senary
2011323553
8
Octal
116170135
10
Decimal
20508765
12
Duodecimal
6a505b9
16
Hexadecimal
138f05d
20
Vigesimal
683bi5
36
Base36
c7knx
md5
22411fa0c7d7099d1cfdb1ccbec6b774
sha1
9fdb79a7169da5fa57024cde04592ad5e82d2a77
sha256
73725dfe01808d4fcf698a114a5b17e8feac29f616341d0dc5ba80e84dc6aea9
sha512
9adf66f0afbe9f31fb1c4cae9d20008e38d42093323e3de883793d5d91682076c240abef18dde4c286bda14d4654e1942302401324475d7c9d7bb296f6d554f2
ripemd-160
d628bc6c9d3cffbf8f7787427a9a9e5ef5b27a51
Diameter
41017530
Circumference
128860370.9164
Area
1.3213835324686E+15
Volume
3.6133259123025E+22
Surface area
5.2855341298745E+15
Circumference
128860370.9164
Perimeter
82035060
Area
420609441825225
Diagonal
29003773.610523
Surface area
2523656650951350
Volume
8.6261801991747E+21
Space diagonal
35522222.98049
Perimeter
61526295
Area
1.8212923084612E+14
Altitude
17761111.490245
Surface area
1.8212923084612E+14
Volume
1.0166050857623E+21
Height
9667924.5368409