18125989 is an odd 8-digits composite number following 18125988
and preceding 18125990 . In scientific notation, it is written as 1.8125989 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 15536556 positive integers (up to 18125989) that are relatively prime to 18125989.
18125989 has 4 divisors, whose sum is 20715424
The reverse of 18125989 is 98952181
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
eighteen million one hundred twenty-five thousand nine hundred eighty-nine
Scientific notation
1.8125989 × 10^7
Engineering notation
1.8125989 × 10^6
Prime Factorization
7 × 2589427
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18125989
Product of the distinct prime numbers
The prime factorization of 18125989 is 7 × 2589427.
Since it has a total of 2 prime factors.
9 , 2 , 96 , 59 , 884 , 940 , 2386 , 4763 , 70337 , 68817 , 942974 , 814433 , 4969225 , 8530899 , 72661864 , 1628246 , 398332566 , 950596116 , 7700483642 , 5192611455
n×2
36251978
n×3
54377967
n×4
72503956
n×5
90629945
n÷2
9062994.5
n÷3
6041996.3333333
n÷3
4531497.25
n÷5
3625197.8
n2
328551477228121
n3
5.9553204621707E+21
n4
1.0794607318878E+29
n5
1.956629335213E+36
2 √n
4257.4627420566
3 √n
262.68417128341
4 √n
65.249235566837
5 √n
28.291784567793
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
-18125988
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 18125989 can be divided by 4 positive divisors.
The sum of these divisors (counting 18125989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000101001001010010100101
3
Ternary
1021002220011221
4
Quaternary
1011021102211
5
Quinary
14120012424
6
Senary
1444300341
8
Octal
105112245
10
Decimal
18125989
12
Duodecimal
60a16b1
16
Hexadecimal
11494a5
20
Vigesimal
5d5ej9
36
Base36
asi3p
md5
b33e50774f0f9f2a4f3246e2d5dfdbe6
sha1
cfa4808761e2cbf736de78b68e4e9f1c299ac12f
sha256
c8a119452c515a7efe73bb2406fe210c7f404315a7734355a9466c7fc4ff903e
sha512
e61a52262f9abee28017b6d43d4f7bb065aa0d94a415807b47d0d0c9b024d36a657cee536837d24c8369ee75d0a492b69e84dc123d0c3a3708a132938939ac90
ripemd-160
1440c2306defed30c89ed7ee587fe8bdd3b03247
Diameter
36251978
Circumference
113888947.7629
Area
1.0321749071859E+15
Volume
2.4945588018304E+22
Surface area
4.1286996287438E+15
Circumference
113888947.7629
Perimeter
72503956
Area
328551477228121
Diagonal
25634019.475226
Surface area
1971308863368726
Volume
5.9553204621707E+21
Space diagonal
31395133.885435
Perimeter
54377967
Area
1.4226696286523E+14
Altitude
15697566.942717
Surface area
1.4226696286523E+14
Volume
7.0184124715665E+20
Height
8544673.1584085