18213 is an odd 5-digits composite number following 18212
and preceding 18214 . In scientific notation, it is written as 1.8213 × 10^4.
The sum of its digits is 15. It has a total of 2 prime factors and 4 positive divisors.
There are 11184 positive integers (up to 18213) that are relatively prime to 18213.
18213 has 4 divisors, whose sum is 18720
The reverse of 18213 is 31281
Previous prime number is 39
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 15
Digital Root 6
Name
eighteen thousand two hundred thirteen
Scientific notation
1.8213 × 10^4
Engineering notation
1.8213 × 10^3
Prime Factorization
39 × 467
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18213
Product of the distinct prime numbers
The prime factorization of 18213 is 39 × 467.
Since it has a total of 2 prime factors.
7 , 6 , 23 , 70 , 796 , 63 , 7911 , 1947 , 81559 , 83056 , 316688 , 338146 , 3952769 , 3259513 , 12266798 , 60306274 , 609516890 , 478481020 , 6501928453 , 4320033039
n×2
36426
n×3
54639
n×4
72852
n×5
91065
n÷2
9106.5
n÷3
6071
n÷3
4553.25
n÷5
3642.6
n2
331713369
n3
6041495589597
n4
110033759173330161
n5
2.0040448558239E+21
2 √n
134.95554823719
3 √n
26.310382538271
4 √n
11.617036981829
5 √n
7.1133847170679
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
-18212
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 18213 can be divided by 4 positive divisors.
The sum of these divisors (counting 18213) is 1, the average is 0.25.
Base
System
Value
2
Binary
100011100100101
3
Ternary
220222120
4
Quaternary
10130211
5
Quinary
1040323
6
Senary
220153
8
Octal
43445
10
Decimal
18213
12
Duodecimal
a659
16
Hexadecimal
4725
20
Vigesimal
25ad
36
Base36
e1x
md5
0120ec28bc96b5b1ce1ba1999ce204b0
sha1
d5409908ee0051a024bfd61d3ac251e014ddf788
sha256
1302e6b526abb543b83d2999d43c4d6badddcff49f85e8b3ecb0c889a6a6b14d
sha512
69e7908fb319bd405072520a8406a17469f61687b45e94fe7bbaa0b67a655eb725a968a8893cd224a0971a878f22412c7119c38a0115144f4e873061f9886ae3
ripemd-160
50c7817e97b26f0239b9bdba5ab2fb5188eb9272
Diameter
36426
Circumference
114435.65399966
Area
1042108283.1479
Volume
25306557547964
Surface area
4168433132.5917
Circumference
114435.65399966
Perimeter
72852
Area
331713369
Diagonal
25757.071611501
Surface area
1990280214
Volume
6041495589597
Space diagonal
31545.841358252
Perimeter
54639
Area
143636102.16446
Altitude
15772.920679126
Surface area
143636102.16446
Volume
711997083318.78
Height
8585.6905371671