18220145 is an odd 8-digits composite number following 18220144
and preceding 18220146 . In scientific notation, it is written as 1.8220145 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 13808880 positive integers (up to 18220145) that are relatively prime to 18220145.
18220145 has 8 divisors, whose sum is 23015040
The reverse of 18220145 is 54102281
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
eighteen million two hundred twenty thousand one hundred forty-five
Scientific notation
1.8220145 × 10^7
Engineering notation
1.8220145 × 10^6
Prime Factorization
19 × 5 × 191791
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18220145
Product of the distinct prime numbers
The prime factorization of 18220145 is 19 × 5 × 191791.
Since it has a total of 3 prime factors.
3 , 7 , 44 , 84 , 300 , 275 , 1573 , 2301 , 83825 , 13406 , 88692 , 246244 , 6565608 , 6906576 , 63963050 , 26188124 , 455698676 , 904307233 , 264576761 , 4572090662
n×2
36440290
n×3
54660435
n×4
72880580
n×5
91100725
n÷2
9110072.5
n÷3
6073381.6666667
n÷3
4555036.25
n÷5
3644029
n2
331973683821025
n3
6.0486086554032E+21
n4
1.102065267497E+29
n5
2.0079788973259E+36
2 √n
4268.5061789811
3 √n
263.13822628791
4 √n
65.333805789814
5 √n
28.321116192064
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
-18220144
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 18220145 can be divided by 8 positive divisors.
The sum of these divisors (counting 18220145) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000101100000010001110001
3
Ternary
1021021200100012
4
Quaternary
1011200101301
5
Quinary
14131021040
6
Senary
1450304305
8
Octal
105402161
10
Decimal
18220145
12
Duodecimal
6128095
16
Hexadecimal
1160471
20
Vigesimal
5dha75
36
Base36
auir5
md5
66a96e689040b9e30f8039d1acd4a885
sha1
b56e3c88e535e7fee7b461566f08265c59ccdcbd
sha256
4822113c4dd4bade92c80ce948163fbcca9bb9405c34a5d4b429d91334974bde
sha512
480ffd5369f5e6f70fc4ff9d7c09d6e54cd1ed60ef29780c1cbb6fee4a3facd02db28307098a324354ba346755bea8339f4e86dc9dfaf5894d9234cfd1d4af84
ripemd-160
81de0ee00b59cd3ec3928d65c3b7a769fc484af1
Diameter
36440290
Circumference
114480547.35868
Area
1.0429260862773E+15
Volume
2.5336352688339E+22
Surface area
4.1717043451091E+15
Circumference
114480547.35868
Perimeter
72880580
Area
331973683821025
Diagonal
25767176.167404
Surface area
1991842102926150
Volume
6.0486086554032E+21
Space diagonal
31558216.861272
Perimeter
54660435
Area
1.4374882178846E+14
Altitude
15779108.430636
Surface area
1.4374882178846E+14
Volume
7.1283536616321E+20
Height
8589058.7224681