20731686 is an even 8-digits composite number following 20731685
and preceding 20731687 . In scientific notation, it is written as 2.0731686 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 6910560 positive integers (up to 20731686) that are relatively prime to 20731686.
20731686 has 8 divisors, whose sum is 41463384
The reverse of 20731686 is 68613702
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million seven hundred thirty-one thousand six hundred eighty-six
Scientific notation
2.0731686 × 10^7
Engineering notation
2.0731686 × 10^6
Prime Factorization
2 × 3 × 3455281
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20731686
Product of the distinct prime numbers
The prime factorization of 20731686 is 2 × 3 × 3455281.
Since it has a total of 3 prime factors.
7 , 9 , 54 , 45 , 715 , 727 , 6684 , 2889 , 15841 , 89540 , 8915 , 23682 , 2561668 , 9311004 , 91013228 , 65789133 , 861280210 , 667688419 , 3015725191 , 2014375175
n×2
41463372
n×3
62195058
n×4
82926744
n×5
103658430
n÷2
10365843
n÷3
6910562
n÷3
5182921.5
n÷5
4146337.2
n2
429802804402596
n3
8.910536782794E+21
n4
1.8473045067234E+29
n5
3.8297736979774E+36
2 √n
4553.206123162
3 √n
274.71236481873
4 √n
67.477448997143
5 √n
29.062095428233
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
-20731685
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 20731686 can be divided by 8 positive divisors.
The sum of these divisors (counting 20731686) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111000101011100100110
3
Ternary
1110000021112020
4
Quaternary
1033011130212
5
Quinary
20301403221
6
Senary
2020204010
8
Octal
117053446
10
Decimal
20731686
12
Duodecimal
6b39606
16
Hexadecimal
13c5726
20
Vigesimal
69b946
36
Base36
ccco6
md5
b52fd29ac4a17b0550e5a0c70f4c1094
sha1
8ae961f20b2385f97656660a4797a1ba4b6309bc
sha256
3a94f6ea079a6ff83dca6fb8419d0a9cde054cbee159cd4b3b8dcc9dc1ebbe74
sha512
c632c5c9073c5ca7d7e5424ea4a0321e4eed5ccb592f9eeadcbe6ac60b9721c541c64caaa3f4206bfe8228c491b3473a4a094e4708d61a70c62f408fb8185687
ripemd-160
03d129512f4fbd89dd6c26a08b1e642b27602846
Diameter
41463372
Circumference
130261024.86826
Area
1.3502653328035E+15
Volume
3.7324369195157E+22
Surface area
5.4010613312139E+15
Circumference
130261024.86826
Perimeter
82926744
Area
429802804402596
Diagonal
29319031.51206
Surface area
2578816826415576
Volume
8.910536782794E+21
Space diagonal
35908333.478564
Perimeter
62195058
Area
1.8611007361522E+14
Altitude
17954166.739282
Surface area
1.8611007361522E+14
Volume
1.050116830521E+21
Height
9773010.5040201