18995 is an odd 5-digits composite number following 18994
and preceding 18996 . In scientific notation, it is written as 1.8995 × 10^4.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 14560 positive integers (up to 18995) that are relatively prime to 18995.
18995 has 8 divisors, whose sum is 23760
The reverse of 18995 is 59981
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 32
Digital Root 5
Name
eighteen thousand nine hundred ninety-five
Scientific notation
1.8995 × 10^4
Engineering notation
1.8995 × 10^3
Prime Factorization
5 × 131 × 29
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18995
Product of the distinct prime numbers
The prime factorization of 18995 is 5 × 131 × 29.
Since it has a total of 3 prime factors.
10 , 6 , 74 , 10 , 21 , 328 , 7300 , 5651 , 16780 , 74531 , 652736 , 223021 , 7253205 , 8227733 , 19851959 , 50938258 , 409062550 , 494870221 , 362972566 , 7165099602
n×2
37990
n×3
56985
n×4
75980
n×5
94975
n÷2
9497.5
n÷3
6331.6666666667
n÷3
4748.75
n÷5
3799
n2
360810025
n3
6853586424875
n4
130183874140500625
n5
2.4728426892988E+21
2 √n
137.82234942127
3 √n
26.681675578664
4 √n
11.739776378674
5 √n
7.1734464325768
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18994
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18995 can be divided by 8 positive divisors.
The sum of these divisors (counting 18995) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101000110011
3
Ternary
222001112
4
Quaternary
10220303
5
Quinary
1101440
6
Senary
223535
8
Octal
45063
10
Decimal
18995
12
Duodecimal
abab
16
Hexadecimal
4a33
20
Vigesimal
279f
36
Base36
enn
md5
39f1eea5596e2fb08737be60887d30df
sha1
d31d846324f2b376c5e64463d88b268ae007f761
sha256
3db6c6ddaecfbc6633f422f2b4818fb5e1e8e5764b973af1a005905db56292db
sha512
d454e367ab006fe10701d80958c8f83e36c624b9725166ae912645f4fcb8f218884e2698a6a5cd1c158df6e6d4bb4c18b6f48d3117a65529db9d4e78e83ca291
ripemd-160
23befeab99f36917dbd313300a908507871c1295
Diameter
37990
Circumference
119349.10490988
Area
1133518123.8815
Volume
28708235684173
Surface area
4534072495.5262
Circumference
119349.10490988
Perimeter
75980
Area
360810025
Diagonal
26862.986617277
Surface area
2164860150
Volume
6853586424875
Space diagonal
32900.305089771
Perimeter
56985
Area
156235323.79505
Altitude
16450.152544885
Surface area
156235323.79505
Volume
807702906079.53
Height
8954.3288724256