20685508 is an even 8-digits composite number following 20685507
and preceding 20685509 . In scientific notation, it is written as 2.0685508 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors.
There are 10328040 positive integers (up to 20685508) that are relatively prime to 20685508.
20685508 has 12 divisors, whose sum is 36251152
The reverse of 20685508 is 80558602
Previous prime number is 787
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million six hundred eighty-five thousand five hundred eight
Scientific notation
2.0685508 × 10^7
Engineering notation
2.0685508 × 10^6
Prime Factorization
2 × 2 × 787 × 6571
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10342754
Product of the distinct prime numbers
The prime factorization of 20685508 is 2 × 2 × 787 × 6571.
Since it has a total of 4 prime factors.
1 , 6 , 33 , 45 , 401 , 909 , 120 , 386 , 15505 , 17813 , 639294 , 37277 , 9416283 , 3946165 , 84089388 , 33897019 , 147835305 , 810493946 , 1956501816 , 6784472027
n×2
41371016
n×3
62056524
n×4
82742032
n×5
103427540
n÷2
10342754
n÷3
6895169.3333333
n÷3
5171377
n÷5
4137101.6
n2
427890241218064
n3
8.8511270078382E+21
n4
1.8309005852965E+29
n5
3.7873108704356E+36
2 √n
4548.132363949
3 √n
274.50824734705
4 √n
67.439842555784
5 √n
29.049137227496
1 , 2 , 4 , 787 , 1574 , 3148 , 6571 , 13142 , 26284 , 5171377 , 10342754 , 20685508
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20685507
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20685508 can be divided by 12 positive divisors.
The sum of these divisors (counting 20685508) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001110111010001011000100
3
Ternary
1102220221011221
4
Quaternary
1032322023010
5
Quinary
20243414013
6
Senary
2015210124
8
Octal
116721304
10
Decimal
20685508
12
Duodecimal
6b16944
16
Hexadecimal
13ba2c4
20
Vigesimal
695df8
36
Base36
cbd1g
md5
6175197fb6dd48a247b389a08dfc190f
sha1
f83665254b154e93263cf97179b49d4b1f1256e0
sha256
ea6c20619be496687b432d16628dc1d300f12cce787e1268aef2f1d2e69b10a2
sha512
a3da23c9ebf43bccc311fe0c6331a9abbf236d55af2789238c406eb251558df5b193e68c596e464f6e523d8e3fa6b746ab97bfb3407e4bf209feaaad65e0c845
ripemd-160
ba16948844c6eb074381d070c66e5907e3d1af1d
Diameter
41371016
Circumference
129970879.93715
Area
1.3442568383534E+15
Volume
3.7075514111753E+22
Surface area
5.3770273534137E+15
Circumference
129970879.93715
Perimeter
82742032
Area
427890241218064
Diagonal
29253725.958177
Surface area
2567341447308384
Volume
8.8511270078382E+21
Space diagonal
35828350.836372
Perimeter
62056524
Area
1.8528190946315E+14
Altitude
17914175.418186
Surface area
1.8528190946315E+14
Volume
1.0431153213976E+21
Height
9751241.9860591