18189919 is an odd 8-digits composite number following 18189918
and preceding 18189920 . In scientific notation, it is written as 1.8189919 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 16507800 positive integers (up to 18189919) that are relatively prime to 18189919.
18189919 has 8 divisors, whose sum is 19877760
The reverse of 18189919 is 91998181
Previous prime number is 811
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
eighteen million one hundred eighty-nine thousand nine hundred nineteen
Scientific notation
1.8189919 × 10^7
Engineering notation
1.8189919 × 10^6
Prime Factorization
11 × 811 × 2039
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18189919
Product of the distinct prime numbers
The prime factorization of 18189919 is 11 × 811 × 2039.
Since it has a total of 3 prime factors.
3 , 2 , 68 , 83 , 834 , 293 , 4362 , 2514 , 48270 , 40275 , 555973 , 86278 , 6785795 , 3222605 , 32054382 , 23196201 , 917248991 , 483558450 , 5343874937 , 6975755552
n×2
36379838
n×3
54569757
n×4
72759676
n×5
90949595
n÷2
9094959.5
n÷3
6063306.3333333
n÷3
4547479.75
n÷5
3637983.8
n2
330873153226561
n3
6.0185558564657E+21
n4
1.0947704352609E+29
n5
1.991378554099E+36
2 √n
4264.9641264611
3 √n
262.99263618681
4 √n
65.306692815217
5 √n
28.31171338363
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
-18189918
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 18189919 can be divided by 8 positive divisors.
The sum of these divisors (counting 18189919) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000101011000111001011111
3
Ternary
1021020010212201
4
Quaternary
1011120321133
5
Quinary
14124034134
6
Senary
1445512331
8
Octal
105307137
10
Decimal
18189919
12
Duodecimal
61126a7
16
Hexadecimal
1158e5f
20
Vigesimal
5ddefj
36
Base36
atvfj
md5
046546693f3c8f6394a45c0bb625688c
sha1
f5a0a36e0995bb9a968f58057863a087537011e6
sha256
c7aff6653ef501294fa13181ea260a7721a5514cf9a3e434e774bc08d7d07d42
sha512
32496edc4a154eb05b988fbbd509fc8be8677779ed4e56929e9b6c0f9d0247f08ad660b375db04dcae52419a854bd53bcb020f7bb5fe986ab52cdd2bc4c20576
ripemd-160
afcace78ea724136b4983cf8df79ec2a8b551d9f
Diameter
36379838
Circumference
114290631.79959
Area
1.0394686674467E+15
Volume
2.5210467818523E+22
Surface area
4.1578746697866E+15
Circumference
114290631.79959
Perimeter
72759676
Area
330873153226561
Diagonal
25724430.148268
Surface area
1985238919359366
Volume
6.0185558564657E+21
Space diagonal
31505863.893562
Perimeter
54569757
Area
1.4327227806223E+14
Altitude
15752931.946781
Surface area
1.4327227806223E+14
Volume
7.0929360984282E+20
Height
8574810.0494227