20685509 is an odd 8-digits composite number following 20685508
and preceding 20685510 . In scientific notation, it is written as 2.0685509 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 17853696 positive integers (up to 20685509) that are relatively prime to 20685509.
20685509 has 16 divisors, whose sum is 23755200
The reverse of 20685509 is 90558602
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million six hundred eighty-five thousand five hundred nine
Scientific notation
2.0685509 × 10^7
Engineering notation
2.0685509 × 10^6
Prime Factorization
19 × 83 × 13 × 1009
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20685509
Product of the distinct prime numbers
The prime factorization of 20685509 is 19 × 83 × 13 × 1009.
Since it has a total of 4 prime factors.
2 , 7 , 3 , 9 , 347 , 369 , 6719 , 4383 , 55317 , 11960 , 550203 , 524558 , 4285555 , 664875 , 38996662 , 91215843 , 407400392 , 542603407 , 1410078535 , 3890601765
n×2
41371018
n×3
62056527
n×4
82742036
n×5
103427545
n÷2
10342754.5
n÷3
6895169.6666667
n÷3
5171377.25
n÷5
4137101.8
n2
427890282589081
n3
8.851128291509E+21
n4
1.8309009393416E+29
n5
3.787311785886E+36
2 √n
4548.1324738842
3 √n
274.50825177057
4 √n
67.439843370846
5 √n
29.049137508361
1 , 13 , 19 , 83 , 247 , 1009 , 1079 , 1577 , 13117 , 19171 , 20501 , 83747 , 249223 , 1088711 , 1591193 , 20685509
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20685508
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20685509 can be divided by 16 positive divisors.
The sum of these divisors (counting 20685509) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111010001011000101
3
Ternary
1102220221011222
4
Quaternary
1032322023011
5
Quinary
20243414014
6
Senary
2015210125
8
Octal
116721305
10
Decimal
20685509
12
Duodecimal
6b16945
16
Hexadecimal
13ba2c5
20
Vigesimal
695df9
36
Base36
cbd1h
md5
d6452ee182ba5c9424b2c8e1d262462e
sha1
d97ebb6cf4c130d3da99aabf7d01bdf5219826b6
sha256
59e3b95a2b9c2b963b24720a3b43fd51e96e1e8895e7f4583dbac2443de94859
sha512
a8c288f2479d68c7eba2b5673b0a05b6c7f7e939eb021888f4d211fe7b3b0a9c498e75660342b56c05fecf214e07917d4d72483a6e0ed00457e97439dac8eee3
ripemd-160
965afb88aabcf906faf41a6afacbc4d63c4b0fdf
Diameter
41371018
Circumference
129970886.22033
Area
1.3442569683243E+15
Volume
3.7075519488781E+22
Surface area
5.3770278732973E+15
Circumference
129970886.22033
Perimeter
82742036
Area
427890282589081
Diagonal
29253727.372391
Surface area
2567341695534486
Volume
8.851128291509E+21
Space diagonal
35828352.568423
Perimeter
62056527
Area
1.8528192737732E+14
Altitude
17914176.284212
Surface area
1.8528192737732E+14
Volume
1.0431154726797E+21
Height
9751242.4574636