19668 is an even 5-digits composite number following 19667
and preceding 19669 . In scientific notation, it is written as 1.9668 × 10^4.
The sum of its digits is 30. It has a total of 4 prime factors and 12 positive divisors.
There are 5920 positive integers (up to 19668) that are relatively prime to 19668.
19668 has 12 divisors, whose sum is 35700
The reverse of 19668 is 86691
Previous prime number is 33
Is Prime? no
Number parity even
Number length 5
Sum of Digits 30
Digital Root 3
Name
nineteen thousand six hundred sixty-eight
Scientific notation
1.9668 × 10^4
Engineering notation
1.9668 × 10^3
Prime Factorization
2 × 2 × 33 × 149
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9834
Product of the distinct prime numbers
The prime factorization of 19668 is 2 × 2 × 33 × 149.
Since it has a total of 4 prime factors.
8 , 7 , 26 , 87 , 867 , 476 , 4470 , 5817 , 56674 , 16252 , 739487 , 281281 , 3151241 , 7667261 , 88885383 , 10473578 , 910899785 , 836209194 , 739248891 , 5152231683
n×2
39336
n×3
59004
n×4
78672
n×5
98340
n÷2
9834
n÷3
6556
n÷3
4917
n÷5
3933.6
n2
386830224
n3
7608176845632
n4
149637622199890176
n5
2.9430727534274E+21
2 √n
140.24264686607
3 √n
26.993139546407
4 √n
11.8424088287
5 √n
7.2235725656162
1 , 2 , 4 , 33 , 66 , 132 , 149 , 298 , 596 , 4917 , 9834 , 19668
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19667
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19668 can be divided by 12 positive divisors.
The sum of these divisors (counting 19668) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110011010100
3
Ternary
222222110
4
Quaternary
10303110
5
Quinary
1112133
6
Senary
231020
8
Octal
46324
10
Decimal
19668
12
Duodecimal
b470
16
Hexadecimal
4cd4
20
Vigesimal
2938
36
Base36
f6c
md5
97c62a533e5fe5ffbbe8d57be31b7063
sha1
9e609833e19725c3a579df694980183d9ff36f79
sha256
7e64a91506e3081995cfd0a3ee4b780d9b92335098896b3e64f050730a22dd09
sha512
ca3ba49550bc6ff6f5114fa90748e7ecfdd1ea201d39fdc6c004764f154f411bd601c74d3b5324d58d49e91db346530fc0ac629ee0e44d6b7a94f607f320aba9
ripemd-160
415c97dec196985cb9c17ce67198e3e8fcc329b7
Diameter
39336
Circumference
123577.68862161
Area
1215262989.9049
Volume
31869056647266
Surface area
4861051959.6196
Circumference
123577.68862161
Perimeter
78672
Area
386830224
Diagonal
27814.752344754
Surface area
2320981344
Volume
7608176845632
Space diagonal
34065.975283265
Perimeter
59004
Area
167502400.46781
Altitude
17032.987641632
Surface area
167502400.46781
Volume
896632240002.14
Height
9271.584114918