18443989 is an odd 8-digits composite number following 18443988
and preceding 18443990 . In scientific notation, it is written as 1.8443989 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 18375660 positive integers (up to 18443989) that are relatively prime to 18443989.
18443989 has 4 divisors, whose sum is 18512320
The reverse of 18443989 is 98934481
Previous prime number is 271
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
eighteen million four hundred forty-three thousand nine hundred eighty-nine
Scientific notation
1.8443989 × 10^7
Engineering notation
1.8443989 × 10^6
Prime Factorization
271 × 68059
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18443989
Product of the distinct prime numbers
The prime factorization of 18443989 is 271 × 68059.
Since it has a total of 2 prime factors.
5 , 6 , 31 , 95 , 583 , 977 , 3944 , 3240 , 49163 , 30804 , 473422 , 712555 , 4922491 , 5052092 , 98405820 , 22890496 , 331330742 , 122196227 , 2436426805 , 2554802231
n×2
36887978
n×3
55331967
n×4
73775956
n×5
92219945
n÷2
9221994.5
n÷3
6147996.3333333
n÷3
4610997.25
n÷5
3688797.8
n2
340180730232121
n3
6.2742896464132E+21
n4
1.1572292922126E+29
n5
2.1343924336047E+36
2 √n
4294.646551231
3 √n
264.21144007632
4 √n
65.533552865925
5 √n
28.390364663286
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18443988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18443989 can be divided by 4 positive divisors.
The sum of these divisors (counting 18443989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000110010110111011010101
3
Ternary
1021201001101201
4
Quaternary
1012112323111
5
Quinary
14210201424
6
Senary
1455152501
8
Octal
106267325
10
Decimal
18443989
12
Duodecimal
6215731
16
Hexadecimal
1196ed5
20
Vigesimal
5f59j9
36
Base36
azbh1
md5
5071f0ff3680e92ff7f02a148f58fe54
sha1
8e46bc9f2da2a0e208f535780f2252b7bfdcbb04
sha256
e6cc5cb345d4a7ced325f103da45a40c134242ca1439b14987d92bc4b723229a
sha512
3ce11b1d2fb123d0a66732787e6d5e6888fcfbee70c3e0333e71c4da9259eff61f6af66d6946021ab78152fcdbbd5f41cd11d0f292a3753a111151f78bf7ba39
ripemd-160
9723e3e2b7ab4ebcbeba293cf35e6a3a5aa829e8
Diameter
36887978
Circumference
115887000.69058
Area
1.06870928299E+15
Volume
2.6281683012888E+22
Surface area
4.2748371319602E+15
Circumference
115887000.69058
Perimeter
73775956
Area
340180730232121
Diagonal
26083739.38806
Surface area
2041084381392726
Volume
6.2742896464132E+21
Space diagonal
31945926.042241
Perimeter
55331967
Area
1.4730257712948E+14
Altitude
15972963.021121
Surface area
1.4730257712948E+14
Volume
7.3943212601789E+20
Height
8694579.7960201