18449421 is an odd 8-digits composite number following 18449420
and preceding 18449422 . In scientific notation, it is written as 1.8449421 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 11793600 positive integers (up to 18449421) that are relatively prime to 18449421.
18449421 has 16 divisors, whose sum is 25630848
The reverse of 18449421 is 12494481
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighteen million four hundred forty-nine thousand four hundred twenty-one
Scientific notation
1.8449421 × 10^7
Engineering notation
1.8449421 × 10^6
Prime Factorization
3 × 37 × 71 × 2341
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
18449421
Product of the distinct prime numbers
The prime factorization of 18449421 is 3 × 37 × 71 × 2341.
Since it has a total of 4 prime factors.
10 , 9 , 64 , 32 , 739 , 122 , 3823 , 2970 , 61668 , 25191 , 969830 , 473181 , 5442346 , 6332763 , 56294134 , 66233676 , 828603627 , 943307648 , 1685316897 , 637040100
n×2
36898842
n×3
55348263
n×4
73797684
n×5
92247105
n÷2
9224710.5
n÷3
6149807
n÷3
4612355.25
n÷5
3689884.2
n2
340381135235241
n3
6.2798348644129E+21
n4
1.1585931722403E+29
n5
2.1375373202387E+36
2 √n
4295.2789199306
3 √n
264.23737545777
4 √n
65.538377458788
5 √n
28.392036734295
1 , 3 , 37 , 71 , 111 , 213 , 2341 , 2627 , 7023 , 7881 , 86617 , 166211 , 259851 , 498633 , 6149807 , 18449421
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
-18449420
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 18449421 can be divided by 16 positive divisors.
The sum of these divisors (counting 18449421) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000110011000010000001101
3
Ternary
1021201022211220
4
Quaternary
1012120100031
5
Quinary
14210340141
6
Senary
1455233553
8
Octal
106302015
10
Decimal
18449421
12
Duodecimal
62188b9
16
Hexadecimal
119840d
20
Vigesimal
5f63b1
36
Base36
azfnx
md5
5338aa4878bb22a73d639f421408039b
sha1
d0a499afc51eec204f137772906f19e57b55b458
sha256
0380e6893ebecaa0a2ac80247f2ee5f44d5c6ea9de6d447c868e770a2b174318
sha512
9882a59b6ecf1a76bc8295a8db5008588c3f9695d86c0608a01414aedb6e056c80dc6cd207c0249e18a1f5b30ac816f5dcc2e1830f4444df71762ec4ce7aa337
ripemd-160
8d83183a08cc6d650136aafac3307e30c3518d36
Diameter
36898842
Circumference
115921130.95317
Area
1.0693388738756E+15
Volume
2.6304910767729E+22
Surface area
4.2773554955023E+15
Circumference
115921130.95317
Perimeter
73797684
Area
340381135235241
Diagonal
26091421.396131
Surface area
2042286811411446
Volume
6.2798348644129E+21
Space diagonal
31955334.542228
Perimeter
55348263
Area
1.4738935504135E+14
Altitude
15977667.271114
Surface area
1.4738935504135E+14
Volume
7.4008563622634E+20
Height
8697140.465377