18147989 is an odd 8-digits composite number following 18147988
and preceding 18147990 . In scientific notation, it is written as 1.8147989 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 16798320 positive integers (up to 18147989) that are relatively prime to 18147989.
18147989 has 8 divisors, whose sum is 19548672
The reverse of 18147989 is 98974181
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighteen million one hundred forty-seven thousand nine hundred eighty-nine
Scientific notation
1.8147989 × 10^7
Engineering notation
1.8147989 × 10^6
Prime Factorization
23 × 31 × 25453
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18147989
Product of the distinct prime numbers
The prime factorization of 18147989 is 23 × 31 × 25453.
Since it has a total of 3 prime factors.
6 , 6 , 45 , 97 , 561 , 537 , 1567 , 7053 , 81606 , 28778 , 291093 , 876570 , 4768039 , 7504797 , 79943946 , 23875641 , 848562244 , 798874341 , 3844834655 , 3052611765
n×2
36295978
n×3
54443967
n×4
72591956
n×5
90739945
n÷2
9073994.5
n÷3
6049329.6666667
n÷3
4536997.25
n÷5
3629597.8
n2
329349504744121
n3
5.9770311892518E+21
n4
1.084710962752E+29
n5
1.9685322620202E+36
2 √n
4260.0456570323
3 √n
262.7904039287
4 √n
65.269025249595
5 √n
28.298648935873
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
-18147988
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 18147989 can be divided by 8 positive divisors.
The sum of these divisors (counting 18147989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000101001110101010010101
3
Ternary
1021011000100202
4
Quaternary
1011032222111
5
Quinary
14121213424
6
Senary
1444550245
8
Octal
105165225
10
Decimal
18147989
12
Duodecimal
60b2385
16
Hexadecimal
114ea95
20
Vigesimal
5d89j9
36
Base36
asz2t
md5
0f212611f1b6790ee3d1075cb49deffc
sha1
0137340331026441f8497a8d7e8daa730d9b9251
sha256
5cebf3fdfd9921d185411b4c0fa67712650d25bcd9f2a6cff178cb85fbf1f1d4
sha512
dd82d5fb7f794b96ddef61a76cef1e97c1ad1ba31fbf1ab9bda74ed7fb4c569c820f91e5f5dc0dd8bfc53653a4e500139a20f45fb8d9806793933cc4a23935df
ripemd-160
26ceed17cba8804ea2edf4264610672fcb653bf4
Diameter
36295978
Circumference
114027177.83966
Area
1.0346819845676E+15
Volume
2.5036529699241E+22
Surface area
4.1387279382703E+15
Circumference
114027177.83966
Perimeter
72591956
Area
329349504744121
Diagonal
25665132.173598
Surface area
1976097028464726
Volume
5.9770311892518E+21
Space diagonal
31433239.003201
Perimeter
54443967
Area
1.4261251891612E+14
Altitude
15716619.501601
Surface area
1.4261251891612E+14
Volume
7.0439988088057E+20
Height
8555044.0578659