18019405 is an odd 8-digits composite number following 18019404
and preceding 18019406 . In scientific notation, it is written as 1.8019405 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 13495552 positive integers (up to 18019405) that are relatively prime to 18019405.
18019405 has 16 divisors, whose sum is 23016960
The reverse of 18019405 is 50491081
Previous prime number is 239
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighteen million nineteen thousand four hundred five
Scientific notation
1.8019405 × 10^7
Engineering notation
1.8019405 × 10^6
Prime Factorization
5 × 17 × 239 × 887
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
18019405
Product of the distinct prime numbers
The prime factorization of 18019405 is 5 × 17 × 239 × 887.
Since it has a total of 4 prime factors.
9 , 9 , 35 , 11 , 827 , 658 , 1950 , 9246 , 5468 , 23304 , 239703 , 195870 , 7447399 , 7634874 , 82689301 , 76994773 , 416142426 , 346094305 , 5749472325 , 7236256654
n×2
36038810
n×3
54058215
n×4
72077620
n×5
90097025
n÷2
9009702.5
n÷3
6006468.3333333
n÷3
4504851.25
n÷5
3603881
n2
324698956554025
n3
5.8508820012244E+21
n4
1.0542941238727E+29
n5
1.8997752807183E+36
2 √n
4244.9269722811
3 √n
262.16828242585
4 √n
65.153104087842
5 √n
28.258433899345
1 , 5 , 17 , 85 , 239 , 887 , 1195 , 4063 , 4435 , 15079 , 20315 , 75395 , 211993 , 1059965 , 3603881 , 18019405
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
-18019404
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 18019405 can be divided by 16 positive divisors.
The sum of these divisors (counting 18019405) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000100101111010001001101
3
Ternary
1020220110222101
4
Quaternary
1010233101031
5
Quinary
14103110110
6
Senary
1442115101
8
Octal
104572115
10
Decimal
18019405
12
Duodecimal
604ba91
16
Hexadecimal
112f44d
20
Vigesimal
5cc8a5
36
Base36
aq7v1
md5
7c93fdb7bd543e9483efdb902fb85a7f
sha1
94e163881b05c41716e013d0d6e615c70203f8fa
sha256
e405065c0cb6e64c55b2cae097713ed80ef0219d7a3e980208e07622f1b9aa5f
sha512
bbb31526fd9d1356630b1e17cb861b6f66ea7bd6f6da7b663aa8e854724e9b2c93dcdbcaad6577b977c13b5a9fc6f16a2b438ede2471150653245786acdfd432
ripemd-160
1261f30d07431f61c05fba22b1241d933fe04e3b
Diameter
36038810
Circumference
113219260.74012
Area
1.0200718565384E+15
Volume
2.450811721609E+22
Surface area
4.0802874261536E+15
Circumference
113219260.74012
Perimeter
72077620
Area
324698956554025
Diagonal
25483286.936894
Surface area
1948193739324150
Volume
5.8508820012244E+21
Space diagonal
31210524.982161
Perimeter
54058215
Area
1.4059877247904E+14
Altitude
15605262.49108
Surface area
1.4059877247904E+14
Volume
6.8953305649801E+20
Height
8494428.9789645