18894 is an even 5-digits composite number following 18893
and preceding 18895 . In scientific notation, it is written as 1.8894 × 10^4.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 6072 positive integers (up to 18894) that are relatively prime to 18894.
18894 has 16 divisors, whose sum is 39168
The reverse of 18894 is 49881
Previous prime number is 47
Is Prime? no
Number parity even
Number length 5
Sum of Digits 30
Digital Root 3
Name
eighteen thousand eight hundred ninety-four
Scientific notation
1.8894 × 10^4
Engineering notation
1.8894 × 10^3
Prime Factorization
2 × 3 × 47 × 67
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
18894
Product of the distinct prime numbers
The prime factorization of 18894 is 2 × 3 × 47 × 67.
Since it has a total of 4 prime factors.
5 , 6 , 52 , 90 , 482 , 828 , 9358 , 1717 , 70421 , 74566 , 851788 , 760034 , 5105820 , 1857049 , 15714420 , 42088720 , 153803899 , 453714916 , 2953771289 , 5575648321
n×2
37788
n×3
56682
n×4
75576
n×5
94470
n÷2
9447
n÷3
6298
n÷3
4723.5
n÷5
3778.8
n2
356983236
n3
6744841260984
n4
127437030785031696
n5
2.4077952596524E+21
2 √n
137.45544732749
3 √n
26.634301011083
4 √n
11.724139513307
5 √n
7.1658016420111
1 , 2 , 3 , 6 , 47 , 67 , 94 , 134 , 141 , 201 , 282 , 402 , 3149 , 6298 , 9447 , 18894
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
-18893
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 18894 can be divided by 16 positive divisors.
The sum of these divisors (counting 18894) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100100111001110
3
Ternary
221220210
4
Quaternary
10213032
5
Quinary
1101034
6
Senary
223250
8
Octal
44716
10
Decimal
18894
12
Duodecimal
ab26
16
Hexadecimal
49ce
20
Vigesimal
274e
36
Base36
eku
md5
39df222bffe39629d904e4883eabc654
sha1
229b75289f54afa42148201533a5d327c951cf2e
sha256
2bba1605a1f929f49f96cfad7206a7b8c2dc0c88fb629a4eddaa49cd1e49b0ad
sha512
3ecc77684a7a497af11247547baf6acfe633515eba8fdb5827b934feea437d9150c7ccbdb410ac70c784641ebd9a4ff9a24a17f790f974f624bb14aa721b9f18
ripemd-160
3edf1088d496828ad23355cb2f31834f73336f65
Diameter
37788
Circumference
118714.50319385
Area
1121495911.6723
Volume
28252725006849
Surface area
4485983646.6892
Circumference
118714.50319385
Perimeter
75576
Area
356983236
Diagonal
26720.151047477
Surface area
2141899416
Volume
6744841260984
Space diagonal
32725.367958206
Perimeter
56682
Area
154578275.55059
Altitude
16362.683979103
Surface area
154578275.55059
Volume
794887165611.44
Height
8906.7170158258