18390631 is an odd 8-digits composite number following 18390630
and preceding 18390632 . In scientific notation, it is written as 1.8390631 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 15763104 positive integers (up to 18390631) that are relatively prime to 18390631.
18390631 has 8 divisors, whose sum is 21447200
The reverse of 18390631 is 13609381
Previous prime number is 49
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighteen million three hundred ninety thousand six hundred thirty-one
Scientific notation
1.8390631 × 10^7
Engineering notation
1.8390631 × 10^6
Prime Factorization
7 × 49 × 53617
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18390631
Product of the distinct prime numbers
The prime factorization of 18390631 is 7 × 49 × 53617.
Since it has a total of 3 prime factors.
8 , 8 , 12 , 82 , 381 , 876 , 8733 , 5764 , 38309 , 28252 , 246739 , 329817 , 6754147 , 5131642 , 89553846 , 23071132 , 742514687 , 310778809 , 3688796798 , 7444919719
n×2
36781262
n×3
55171893
n×4
73562524
n×5
91953155
n÷2
9195315.5
n÷3
6130210.3333333
n÷3
4597657.75
n÷5
3678126.2
n2
338215308578161
n3
6.2199929386121E+21
n4
1.1438959495662E+29
n5
2.1036968310867E+36
2 √n
4288.4298991589
3 √n
263.95640828309
4 √n
65.486104626546
5 √n
28.373919098288
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
-18390630
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 18390631 can be divided by 8 positive divisors.
The sum of these divisors (counting 18390631) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110001001111001100111
3
Ternary
1021121100012111
4
Quaternary
1012021321213
5
Quinary
14202000011
6
Senary
1454101451
8
Octal
106117147
10
Decimal
18390631
12
Duodecimal
61aa887
16
Hexadecimal
1189e67
20
Vigesimal
5eigbb
36
Base36
ay6av
md5
134e01ba0631663b6c147d03852149e5
sha1
8e3a815a3c4ba3362b5faac337b3a15184a7e37c
sha256
12e191d3d096fe210970073977d7dbe687f8e4aa146f368ed20601219593fffe
sha512
136bfa39978db5c1bc68257f290c6c86f18eef44e9309e7bb422b908f791f1d3c95339bebb958d7e8794b90b68f84c6db3c7e69abba57b6f65d4eb2cf777fec5
ripemd-160
9bb0e6d0dfd70898eb3e8ba4efe7221262560512
Diameter
36781262
Circumference
115551742.48896
Area
1.0625347287608E+15
Volume
2.6054245495099E+22
Surface area
4.250138915043E+15
Circumference
115551742.48896
Perimeter
73562524
Area
338215308578161
Diagonal
26008279.780799
Surface area
2029291851468966
Volume
6.2199929386121E+21
Space diagonal
31853507.275251
Perimeter
55171893
Area
1.4645152458874E+14
Altitude
15926753.637626
Surface area
1.4645152458874E+14
Volume
7.3303319763751E+20
Height
8669426.5935997