18308979 is an odd 8-digits composite number following 18308978
and preceding 18308980 . In scientific notation, it is written as 1.8308979 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 11266992 positive integers (up to 18308979) that are relatively prime to 18308979.
18308979 has 8 divisors, whose sum is 21908320
The reverse of 18308979 is 97980381
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighteen million three hundred eight thousand nine hundred seventy-nine
Scientific notation
1.8308979 × 10^7
Engineering notation
1.8308979 × 10^6
Prime Factorization
9 × 13 × 156487
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18308979
Product of the distinct prime numbers
The prime factorization of 18308979 is 9 × 13 × 156487.
Since it has a total of 3 prime factors.
10 , 2 , 85 , 21 , 74 , 986 , 267 , 8790 , 9556 , 43753 , 394132 , 830590 , 7243903 , 4450724 , 88825813 , 86712701 , 886784973 , 69228490 , 7550946932 , 1117817437
n×2
36617958
n×3
54926937
n×4
73235916
n×5
91544895
n÷2
9154489.5
n÷3
6102993
n÷3
4577244.75
n÷5
3661795.8
n2
335218712022441
n3
6.1375123588259E+21
n4
1.1237158488998E+29
n5
2.0574089879474E+36
2 √n
4278.8992743461
3 √n
263.56518472252
4 √n
65.413295852954
5 √n
28.348678934096
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
-18308978
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 18308979 can be divided by 8 positive divisors.
The sum of these divisors (counting 18308979) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000101110101111101110011
3
Ternary
1021110012012100
4
Quaternary
1011311331303
5
Quinary
14141341404
6
Senary
1452231443
8
Octal
105657563
10
Decimal
18308979
12
Duodecimal
616b583
16
Hexadecimal
1175f73
20
Vigesimal
5e8c8j
36
Base36
awfar
md5
150f409a02588b895b9a0bb7a4e8ad57
sha1
3a8ad4832780311e87382667d92d65e38a192066
sha256
95e9bebebb58a2a24f185fb2f22fc1bd4de73778205ee03a8e34bf0ccb49aafc
sha512
90b21cb68fb6eef8afd83f9be225cf65ddd7b3149c9cddcb4838bba1bc26109853932f760afddcd4953bdb7f79a87e135243c06c2c61e32fa2b1d83e283739c2
ripemd-160
96d2d089fc0dc8fcb8ca09d776e8b1c8b65f1175
Diameter
36617958
Circumference
115038707.84226
Area
1.0531206430355E+15
Volume
2.5708751650405E+22
Surface area
4.2124825721421E+15
Circumference
115038707.84226
Perimeter
73235916
Area
335218712022441
Diagonal
25892806.415004
Surface area
2011312272134646
Volume
6.1375123588259E+21
Space diagonal
31712081.862712
Perimeter
54926937
Area
1.4515396021767E+14
Altitude
15856040.931356
Surface area
1.4515396021767E+14
Volume
7.2331276809034E+20
Height
8630935.4716681