20508739 is an odd 8-digits composite number following 20508738
and preceding 20508740 . In scientific notation, it is written as 2.0508739 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 20476960 positive integers (up to 20508739) that are relatively prime to 20508739.
20508739 has 4 divisors, whose sum is 20540520
The reverse of 20508739 is 93780502
Previous prime number is 659
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million five hundred eight thousand seven hundred thirty-nine
Scientific notation
2.0508739 × 10^7
Engineering notation
2.0508739 × 10^6
Prime Factorization
659 × 31121
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20508739
Product of the distinct prime numbers
The prime factorization of 20508739 is 659 × 31121.
Since it has a total of 2 prime factors.
4 , 7 , 11 , 99 , 348 , 949 , 6398 , 3670 , 51660 , 95298 , 355457 , 713011 , 185200 , 2023527 , 3507880 , 21051311 , 163224262 , 744139925 , 7065067985 , 9567621786
n×2
41017478
n×3
61526217
n×4
82034956
n×5
102543695
n÷2
10254369.5
n÷3
6836246.3333333
n÷3
5127184.75
n÷5
4101747.8
n2
420608375370121
n3
8.6261473916798E+21
n4
1.7691140543149E+29
n5
3.6282298401177E+36
2 √n
4528.6575273474
3 √n
273.72406821214
4 √n
67.295300930655
5 √n
28.999318484937
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
-20508738
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 20508739 can be divided by 4 positive divisors.
The sum of these divisors (counting 20508739) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110001111000001000011
3
Ternary
1102120221200221
4
Quaternary
1032033001003
5
Quinary
20222234424
6
Senary
2011323511
8
Octal
116170103
10
Decimal
20508739
12
Duodecimal
6a50597
16
Hexadecimal
138f043
20
Vigesimal
683bgj
36
Base36
c7kn7
md5
393cb1232e03bc9c471df9253aeb363a
sha1
62b7c6fe31044f27c07d43f60ae7e7317d440f43
sha256
f68f8b6e892847a9e2ea9ef539978966bb750e3faf64e64a9c765c31511cfcde
sha512
c8e9a0800e801bdf0e9ad188fbe2b9e0f4ce3e8eab087ade400dbd9061acb4ec9c8abf444b1fe190bb6bf07647668d6cd274449f9fcc4c99099460028b576bff
ripemd-160
c0b8e4ca4b9438635cc3d11a69121b6452962421
Diameter
41017478
Circumference
128860207.55358
Area
1.3213801821011E+15
Volume
3.6133121699312E+22
Surface area
5.2855207284044E+15
Circumference
128860207.55358
Perimeter
82034956
Area
420608375370121
Diagonal
29003736.84097
Surface area
2523650252220726
Volume
8.6261473916798E+21
Space diagonal
35522177.947169
Perimeter
61526217
Area
1.8212876905751E+14
Altitude
17761088.973585
Surface area
1.8212876905751E+14
Volume
1.0166012193619E+21
Height
9667912.2803233