19689 is an odd 5-digits composite number following 19688
and preceding 19690 . In scientific notation, it is written as 1.9689 × 10^4.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 13124 positive integers (up to 19689) that are relatively prime to 19689.
19689 has 4 divisors, whose sum is 26256
The reverse of 19689 is 98691
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 33
Digital Root 6
Name
nineteen thousand six hundred eighty-nine
Scientific notation
1.9689 × 10^4
Engineering notation
1.9689 × 10^3
Prime Factorization
3 × 6563
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19689
Product of the distinct prime numbers
The prime factorization of 19689 is 3 × 6563.
Since it has a total of 2 prime factors.
9 , 7 , 25 , 38 , 311 , 286 , 224 , 5618 , 60189 , 1050 , 626597 , 730681 , 3023802 , 2422010 , 67997762 , 64346172 , 707578189 , 343975920 , 3800523845 , 6766978653
n×2
39378
n×3
59067
n×4
78756
n×5
98445
n÷2
9844.5
n÷3
6563
n÷3
4922.25
n÷5
3937.8
n2
387656721
n3
7632573179769
n4
150277733336471841
n5
2.9588182916618E+21
2 √n
140.31749712705
3 √n
27.002743205505
4 √n
11.84556867048
5 √n
7.2251144639075
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19688
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19689 can be divided by 4 positive divisors.
The sum of these divisors (counting 19689) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110011101001
3
Ternary
1000000020
4
Quaternary
10303221
5
Quinary
1112224
6
Senary
231053
8
Octal
46351
10
Decimal
19689
12
Duodecimal
b489
16
Hexadecimal
4ce9
20
Vigesimal
2949
36
Base36
f6x
md5
ca196f0118b778df5b7fe97b8aea596a
sha1
71dee9600d6456284a6709b09601ea915112bde9
sha256
f1f2c569870e3f8472f4920e45768500a9b687b964980462746a978142838e5e
sha512
b77c8d62dd31af1432ceef5145bdb34042134c2ce85bbdd8ab43f9a4c05cd00320e46bae7f2c333aacbcb7f9c61abab3212dbcc43a8ee00e9b22abffd255cced
ripemd-160
a698b174b7d701c686e615374b4c206090092ca7
Diameter
39378
Circumference
123709.63551306
Area
1217859506.8083
Volume
31971247772732
Surface area
4871438027.2332
Circumference
123709.63551306
Perimeter
78756
Area
387656721
Diagonal
27844.450829564
Surface area
2325940326
Volume
7632573179769
Space diagonal
34102.348350224
Perimeter
59067
Area
167860284.16689
Altitude
17051.174175112
Surface area
167860284.16689
Volume
899507375552.87
Height
9281.4836098546