20689917 is an odd 8-digits composite number following 20689916
and preceding 20689918 . In scientific notation, it is written as 2.0689917 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 12787632 positive integers (up to 20689917) that are relatively prime to 20689917.
20689917 has 16 divisors, whose sum is 29660160
The reverse of 20689917 is 71998602
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million six hundred eighty-nine thousand nine hundred seventeen
Scientific notation
2.0689917 × 10^7
Engineering notation
2.0689917 × 10^6
Prime Factorization
3 × 19 × 47 × 7723
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20689917
Product of the distinct prime numbers
The prime factorization of 20689917 is 3 × 19 × 47 × 7723.
Since it has a total of 4 prime factors.
4 , 1 , 39 , 60 , 573 , 444 , 1734 , 8374 , 27065 , 81436 , 329704 , 30704 , 7664996 , 3374370 , 54060715 , 68276650 , 845329671 , 975863185 , 8743842706 , 7664509154
n×2
41379834
n×3
62069751
n×4
82759668
n×5
103449585
n÷2
10344958.5
n÷3
6896639
n÷3
5172479.25
n÷5
4137983.4
n2
428072665466889
n3
8.8567879184787E+21
n4
1.8324620691993E+29
n5
3.7913488117381E+36
2 √n
4548.6170425746
3 √n
274.52774925925
4 √n
67.443435874625
5 √n
29.050375454063
1 , 3 , 19 , 47 , 57 , 141 , 893 , 2679 , 7723 , 23169 , 146737 , 362981 , 440211 , 1088943 , 6896639 , 20689917
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
-20689916
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 20689917 can be divided by 16 positive divisors.
The sum of these divisors (counting 20689917) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111011001111111101
3
Ternary
1102221011020020
4
Quaternary
1032323033331
5
Quinary
20244034132
6
Senary
2015242353
8
Octal
116731775
10
Decimal
20689917
12
Duodecimal
6b193b9
16
Hexadecimal
13bb3fd
20
Vigesimal
6964fh
36
Base36
cbgfx
md5
a327c381c426f123213c97a2f015dbb2
sha1
7a97041272298bf3739becaf7fea958e0c21da06
sha256
0f7cd1c7e1c48e1b0c254c346f629a9db8268b0eda26dfcb33e59b9ffd5b9f1e
sha512
3b2f713ce811f2620ecc083ed895e27226c1f36b17a61b6e764f0606bc7864e37790df7435763151404d5aa8a16c246b9521864e629fe77776c69f1beb389199
ripemd-160
0da1e18a6225ae686228b66f2df5e0e5423e62de
Diameter
41379834
Circumference
129998582.50117
Area
1.3448299410334E+15
Volume
3.7099226478794E+22
Surface area
5.3793197641335E+15
Circumference
129998582.50117
Perimeter
82759668
Area
428072665466889
Diagonal
29259961.225774
Surface area
2568435992801334
Volume
8.8567879184787E+21
Space diagonal
35835987.448383
Perimeter
62069751
Area
1.8536090148002E+14
Altitude
17917993.724192
Surface area
1.8536090148002E+14
Volume
1.0437824661146E+21
Height
9753320.4085912