18398540 is an even 8-digits composite number following 18398539
and preceding 18398541 . In scientific notation, it is written as 1.8398540 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors.
There are 7359408 positive integers (up to 18398540) that are relatively prime to 18398540.
18398540 has 12 divisors, whose sum is 38636976
The reverse of 18398540 is 04589381
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighteen million three hundred ninety-eight thousand five hundred forty
Scientific notation
1.8398540 × 10^7
Engineering notation
1.8398540 × 10^6
Prime Factorization
2 × 2 × 5 × 919927
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9199270
Product of the distinct prime numbers
The prime factorization of 18398540 is 2 × 2 × 5 × 919927.
Since it has a total of 4 prime factors.
3 , 2 , 95 , 68 , 159 , 659 , 1725 , 5033 , 12407 , 92862 , 276695 , 172194 , 1312382 , 7771778 , 77382294 , 25010642 , 725252921 , 473195180 , 9831938653 , 7055181699
n×2
36797080
n×3
55195620
n×4
73594160
n×5
91992700
n÷2
9199270
n÷3
6132846.6666667
n÷3
4599635
n÷5
3679708
n2
338506274131600
n3
6.2280212248612E+21
n4
1.1458649762646E+29
n5
2.1082242600403E+36
2 √n
4289.3519324019
3 √n
263.99424153341
4 √n
65.493144163354
5 √n
28.376359153039
1 , 2 , 4 , 5 , 10 , 20 , 919927 , 1839854 , 3679708 , 4599635 , 9199270 , 18398540
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18398539
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18398540 can be divided by 12 positive divisors.
The sum of these divisors (counting 18398540) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1000110001011110101001100
3
Ternary
1021121202001102
4
Quaternary
1012023311030
5
Quinary
14202223130
6
Senary
1454202232
8
Octal
106136514
10
Decimal
18398540
12
Duodecimal
61b3378
16
Hexadecimal
118bd4c
20
Vigesimal
5ejg70
36
Base36
aycek
md5
8d407743a43c110b32114cce13b96b75
sha1
cfa63ac4cde1c770f3d13e41de4f7f3bb99b94c1
sha256
f66dae9d2fdb76ecd4eb5649548b234125c2ea6fcdf23bddad95dc6391e4b33e
sha512
d645c3c51a4169bdee609981a8ec7a29e63cae972902b3c9b349b96079b1480cb1529e12e880b6bc2e6a6889e7dcbb49ae6f7494ab69b8de09a4bf137532bd91
ripemd-160
79b64cd085c81876c36ff606e55ed9fd705340db
Diameter
36797080
Circumference
115601436.20156
Area
1.0634488240059E+15
Volume
2.60878743019E+22
Surface area
4.2537952960235E+15
Circumference
115601436.20156
Perimeter
73594160
Area
338506274131600
Diagonal
26019464.795864
Surface area
2031037644789600
Volume
6.2280212248612E+21
Space diagonal
31867206.065088
Perimeter
55195620
Area
1.4657751636919E+14
Altitude
15933603.032544
Surface area
1.4657751636919E+14
Volume
7.3397934024552E+20
Height
8673154.9319546