20685847 is an odd 8-digits composite number following 20685846
and preceding 20685848 . In scientific notation, it is written as 2.0685847 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors.
There are 16054272 positive integers (up to 20685847) that are relatively prime to 20685847.
20685847 has 16 divisors, whose sum is 25945920
The reverse of 20685847 is 74858602
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million six hundred eighty-five thousand eight hundred forty-seven
Scientific notation
2.0685847 × 10^7
Engineering notation
2.0685847 × 10^6
Prime Factorization
7 × 13 × 53 × 4289
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20685847
Product of the distinct prime numbers
The prime factorization of 20685847 is 7 × 13 × 53 × 4289.
Since it has a total of 4 prime factors.
6 , 4 , 18 , 78 , 551 , 27 , 7718 , 7088 , 65555 , 67594 , 96581 , 612825 , 7749930 , 8956128 , 59123193 , 27676272 , 776586154 , 438667682 , 9044539378 , 4808043559
n×2
41371694
n×3
62057541
n×4
82743388
n×5
103429235
n÷2
10342923.5
n÷3
6895282.3333333
n÷3
5171461.75
n÷5
4137169.4
n2
427904266107409
n3
8.8515621793451E+21
n4
1.8310206095292E+29
n5
3.7876212182568E+36
2 √n
4548.1696318409
3 √n
274.50974691199
4 √n
67.440118859926
5 √n
29.04923243998
1 , 7 , 13 , 53 , 91 , 371 , 689 , 4289 , 4823 , 30023 , 55757 , 227317 , 390299 , 1591219 , 2955121 , 20685847
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
-20685846
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 20685847 can be divided by 16 positive divisors.
The sum of these divisors (counting 20685847) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111010010000010111
3
Ternary
1102220221122111
4
Quaternary
1032322100113
5
Quinary
20243421342
6
Senary
2015211451
8
Octal
116722027
10
Decimal
20685847
12
Duodecimal
6b16b87
16
Hexadecimal
13ba417
20
Vigesimal
695ec7
36
Base36
cbdav
md5
36cb3cf2412a2afb323895726f4b5f11
sha1
6842d382e42b39227d81056dba9b7f14e8eb31e4
sha256
1599f8dab23f297fc6f34234aed4ce975888a603d66593e3e2aaaa2fe4592dae
sha512
a94490b0fc0cf7451e49a57766762a0b3d570217d0c12661fbe51ea9c7d5996e0b0a7043f614ec18484d12bed020721616d91ff26dbcc4fa5cb73b387e779786
ripemd-160
30ceb4e844b9f9733d2a0688719a1773f8cd119d
Diameter
41371694
Circumference
129973009.93696
Area
1.3443008988428E+15
Volume
3.7077336953899E+22
Surface area
5.3772035953711E+15
Circumference
129973009.93696
Perimeter
82743388
Area
427904266107409
Diagonal
29254205.376575
Surface area
2567425596644454
Volume
8.8515621793451E+21
Space diagonal
35828938.001596
Perimeter
62057541
Area
1.8528798241838E+14
Altitude
17914469.000798
Surface area
1.8528798241838E+14
Volume
1.0431666068516E+21
Height
9751401.7921916