18163945 is an odd 8-digits composite number following 18163944
and preceding 18163946 . In scientific notation, it is written as 1.8163945 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 14531152 positive integers (up to 18163945) that are relatively prime to 18163945.
18163945 has 4 divisors, whose sum is 21796740
The reverse of 18163945 is 54936181
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighteen million one hundred sixty-three thousand nine hundred forty-five
Scientific notation
1.8163945 × 10^7
Engineering notation
1.8163945 × 10^6
Prime Factorization
5 × 3632789
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18163945
Product of the distinct prime numbers
The prime factorization of 18163945 is 5 × 3632789.
Since it has a total of 2 prime factors.
2 , 8 , 74 , 73 , 126 , 108 , 4100 , 558 , 19175 , 13157 , 229048 , 887343 , 3603913 , 8299665 , 39546274 , 50366059 , 996717453 , 145732004 , 1536666755 , 3178219025
n×2
36327890
n×3
54491835
n×4
72655780
n×5
90819725
n÷2
9081972.5
n÷3
6054648.3333333
n÷3
4540986.25
n÷5
3632789
n2
329928897963025
n3
5.992810356511E+21
n4
1.088530777111E+29
n5
1.9772013166251E+36
2 √n
4261.917995457
3 √n
262.86739786652
4 √n
65.283366912691
5 √n
28.303623311029
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
-18163944
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 18163945 can be divided by 4 positive divisors.
The sum of these divisors (counting 18163945) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000101010010100011101001
3
Ternary
1021011211020201
4
Quaternary
1011102203221
5
Quinary
14122221240
6
Senary
1445152201
8
Octal
105224351
10
Decimal
18163945
12
Duodecimal
60bb661
16
Hexadecimal
11528e9
20
Vigesimal
5da9h5
36
Base36
atbe1
md5
d1fb5a078f68a08d514ee38a00da5c27
sha1
48a7a854cdf4857dc5fb702acb1951a17d27c808
sha256
357339ef9caaaca326abe8615399af9be6bdc047b364821d676fefad8e4d10dc
sha512
87f72b1dcc47c5e9a1ba65a9982594ac18d973598dcb10620c1d88a800cb9e2c5e8aa43d0d343813d8a72d0cfe8420f97aa61b88543a27957e2dd1f30fc2272b
ripemd-160
bc1410a53c1347af0e530431bfa7ce61603df177
Diameter
36327890
Circumference
114127432.34442
Area
1.0365022020476E+15
Volume
2.5102625320496E+22
Surface area
4.1460088081905E+15
Circumference
114127432.34442
Perimeter
72655780
Area
329928897963025
Diagonal
25687697.365199
Surface area
1979573387778150
Volume
5.992810356511E+21
Space diagonal
31460875.605887
Perimeter
54491835
Area
1.4286340353929E+14
Altitude
15730437.802943
Surface area
1.4286340353929E+14
Volume
7.0625947357565E+20
Height
8562565.7883997