18886 is an even 5-digits composite number following 18885
and preceding 18887 . In scientific notation, it is written as 1.8886 × 10^4.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 7560 positive integers (up to 18886) that are relatively prime to 18886.
18886 has 16 divisors, whose sum is 34560
The reverse of 18886 is 68881
Previous prime number is 7
Is Prime? no
Number parity even
Number length 5
Sum of Digits 31
Digital Root 4
Name
eighteen thousand eight hundred eighty-six
Scientific notation
1.8886 × 10^4
Engineering notation
1.8886 × 10^3
Prime Factorization
2 × 19 × 7 × 71
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
18886
Product of the distinct prime numbers
The prime factorization of 18886 is 2 × 19 × 7 × 71.
Since it has a total of 4 prime factors.
9 , 10 , 5 , 53 , 25 , 994 , 3608 , 6580 , 20289 , 66109 , 756768 , 984654 , 7010083 , 4006863 , 2161804 , 8935625 , 531350922 , 159115882 , 1702161075 , 7070568112
n×2
37772
n×3
56658
n×4
75544
n×5
94430
n÷2
9443
n÷3
6295.3333333333
n÷3
4721.5
n÷5
3777.2
n2
356680996
n3
6736277290456
n4
127221332907552016
n5
2.402702093292E+21
2 √n
137.42634390829
3 √n
26.630541360963
4 √n
11.722898272539
5 √n
7.165194717858
1 , 2 , 7 , 14 , 19 , 38 , 71 , 133 , 142 , 266 , 497 , 994 , 1349 , 2698 , 9443 , 18886
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
-18885
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 18886 can be divided by 16 positive divisors.
The sum of these divisors (counting 18886) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100100111000110
3
Ternary
221220111
4
Quaternary
10213012
5
Quinary
1101021
6
Senary
223234
8
Octal
44706
10
Decimal
18886
12
Duodecimal
ab1a
16
Hexadecimal
49c6
20
Vigesimal
2746
36
Base36
ekm
md5
b63da8791907b9600ec41330019f1459
sha1
646244a8ece0690dc32ad97ec46d13bfbd107852
sha256
ad270a27d05f5ba7c1f58d48b1284de6f3c26d3bf167e17ac662252f38a14e09
sha512
18e41341f8c52117baf2cffc0c25e4c18af70abce8b713ddf49c5aff452a58afa33d0dc1cb9198049b7d5dd82370143814fbd88847d794eab6fdffdaf55fd916
ripemd-160
a1651d3d246134b4bd73156f0a7e5f9197ec72f2
Diameter
37772
Circumference
118664.23771139
Area
1120546396.7087
Volume
28216852330987
Surface area
4482185586.8348
Circumference
118664.23771139
Perimeter
75544
Area
356680996
Diagonal
26708.837338978
Surface area
2140085976
Volume
6736277290456
Space diagonal
32711.511551746
Perimeter
56658
Area
154447401.79157
Altitude
16355.755775873
Surface area
154447401.79157
Volume
793877892005.73
Height
8902.9457796594