18211345 is an odd 8-digits composite number following 18211344
and preceding 18211346 . In scientific notation, it is written as 1.8211345 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 14569072 positive integers (up to 18211345) that are relatively prime to 18211345.
18211345 has 4 divisors, whose sum is 21853620
The reverse of 18211345 is 54311281
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighteen million two hundred eleven thousand three hundred forty-five
Scientific notation
1.8211345 × 10^7
Engineering notation
1.8211345 × 10^6
Prime Factorization
5 × 3642269
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18211345
Product of the distinct prime numbers
The prime factorization of 18211345 is 5 × 3642269.
Since it has a total of 2 prime factors.
6 , 5 , 56 , 69 , 445 , 470 , 6916 , 5288 , 3164 , 17420 , 438802 , 259917 , 1031953 , 6140959 , 70795774 , 5348347 , 77496966 , 582654228 , 4974439366 , 9467322013
n×2
36422690
n×3
54634035
n×4
72845380
n×5
91056725
n÷2
9105672.5
n÷3
6070448.3333333
n÷3
4552836.25
n÷5
3642269
n2
331653086709025
n3
6.039848782373E+21
n4
1.0999376992362E+29
n5
2.0031344919297E+36
2 √n
4267.475248903
3 √n
263.09585580016
4 √n
65.325915599424
5 √n
28.318379946166
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
-18211344
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 18211345 can be divided by 4 positive divisors.
The sum of these divisors (counting 18211345) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000101011110001000010001
3
Ternary
1021021020021021
4
Quaternary
1011132020101
5
Quinary
14130230340
6
Senary
1450155441
8
Octal
105361021
10
Decimal
18211345
12
Duodecimal
6122b81
16
Hexadecimal
115e211
20
Vigesimal
5dg875
36
Base36
aubyp
md5
78164a379eafed533d2699c1f3839a2a
sha1
76cddd09fccf7ea7dfbaee508fef1611e87f7751
sha256
e2aadbca5c81bddfc593c517cbc6e4daa3e89dd225f87b1260b9e8419a10438a
sha512
9f0355bf82371073796eb1e6e91a0e2a814dc541eb797688f4861e442d8acca33ca48a48edbf19afc233f5f163b8cf5615a1eef2a399aa53d187ad8309042b12
ripemd-160
b5f7a49a46b0e621ec9c7a4f93ea9964134779bc
Diameter
36422690
Circumference
114425255.32798
Area
1.0419189007455E+15
Volume
2.5299659417995E+22
Surface area
4.1676756029818E+15
Circumference
114425255.32798
Perimeter
72845380
Area
331653086709025
Diagonal
25754731.088055
Surface area
1989918520254150
Volume
6.039848782373E+21
Space diagonal
31542974.814165
Perimeter
54634035
Area
1.4360999916677E+14
Altitude
15771487.407083
Surface area
1.4360999916677E+14
Volume
7.1180300522621E+20
Height
8584910.3626852