18452021 is an odd 8-digits composite number following 18452020
and preceding 18452022 . In scientific notation, it is written as 1.8452021 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 14100480 positive integers (up to 18452021) that are relatively prime to 18452021.
18452021 has 16 divisors, whose sum is 23506560
The reverse of 18452021 is 12025481
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
eighteen million four hundred fifty-two thousand twenty-one
Scientific notation
1.8452021 × 10^7
Engineering notation
1.8452021 × 10^6
Prime Factorization
7 × 17 × 19 × 8161
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
18452021
Product of the distinct prime numbers
The prime factorization of 18452021 is 7 × 17 × 19 × 8161.
Since it has a total of 4 prime factors.
7 , 10 , 27 , 6 , 156 , 693 , 7242 , 6127 , 71990 , 69137 , 228117 , 97675 , 3619087 , 5176441 , 55590914 , 88002260 , 372049464 , 470556289 , 3818608943 , 2935763602
n×2
36904042
n×3
55356063
n×4
73808084
n×5
92260105
n÷2
9226010.5
n÷3
6150673.6666667
n÷3
4613005.25
n÷5
3690404.2
n2
340477078984441
n3
6.2824902114396E+21
n4
1.1592464131378E+29
n5
2.1390439159393E+36
2 √n
4295.5815671455
3 √n
264.24978749871
4 √n
65.540686349362
5 √n
28.392836923468
1 , 7 , 17 , 19 , 119 , 133 , 323 , 2261 , 8161 , 57127 , 138737 , 155059 , 971159 , 1085413 , 2636003 , 18452021
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18452020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18452021 can be divided by 16 positive divisors.
The sum of these divisors (counting 18452021) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000110011000111000110101
3
Ternary
1021201110102012
4
Quaternary
1012120320311
5
Quinary
14210431041
6
Senary
1455254005
8
Octal
106307065
10
Decimal
18452021
12
Duodecimal
621a305
16
Hexadecimal
1198e35
20
Vigesimal
5f6a11
36
Base36
azho5
md5
bcf2d37558264282209796f5b7c743dd
sha1
9f9e6a6f44011a43a70b9523f25135ec5d77dd5c
sha256
7b82a521f1b37067fc157fedd1f69349e4ff9b530d89e2345301b4108a25aa25
sha512
cff8fada9e620bd7e77c602dfed4f3c771fa6d390df589f7532c6c90484f3e0b8dbe72f1fe2b6e849710110580d1fca8ca574595805bf6b9af564a007d9bdbae
ripemd-160
62379b63c61ce0659cf6fd4d1c529703f389e24d
Diameter
36904042
Circumference
115937467.23497
Area
1.0696402900532E+15
Volume
2.6316033459344E+22
Surface area
4.2785611602129E+15
Circumference
115937467.23497
Perimeter
73808084
Area
340477078984441
Diagonal
26095098.351393
Surface area
2042862473906646
Volume
6.2824902114396E+21
Space diagonal
31959837.874328
Perimeter
55356063
Area
1.4743089990342E+14
Altitude
15979918.937164
Surface area
1.4743089990342E+14
Volume
7.403985718745E+20
Height
8698366.1171311