18542421 is an odd 8-digits composite number following 18542420
and preceding 18542422 . In scientific notation, it is written as 1.8542421 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 12128064 positive integers (up to 18542421) that are relatively prime to 18542421.
18542421 has 8 divisors, whose sum is 20991960
The reverse of 18542421 is 12424581
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
eighteen million five hundred forty-two thousand four hundred twenty-one
Scientific notation
1.8542421 × 10^7
Engineering notation
1.8542421 × 10^6
Prime Factorization
9 × 53 × 38873
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18542421
Product of the distinct prime numbers
The prime factorization of 18542421 is 9 × 53 × 38873.
Since it has a total of 3 prime factors.
10 , 8 , 52 , 51 , 973 , 949 , 6617 , 6294 , 71189 , 64217 , 354851 , 112290 , 5729129 , 9042949 , 64709956 , 83903446 , 168624427 , 176205197 , 4175609365 , 1909786082
n×2
37084842
n×3
55627263
n×4
74169684
n×5
92712105
n÷2
9271210.5
n÷3
6180807
n÷3
4635605.25
n÷5
3708484.2
n2
343821376541241
n3
6.3752807126272E+21
n4
1.1821313896671E+29
n5
2.1919577904523E+36
2 √n
4306.0911509163
3 √n
264.68062152844
4 √n
65.620813397247
5 √n
28.420602958047
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
-18542420
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 18542421 can be divided by 8 positive divisors.
The sum of these divisors (counting 18542421) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110101110111101010101
3
Ternary
1021220001102100
4
Quaternary
1012232331111
5
Quinary
14221324141
6
Senary
1501232313
8
Octal
106567525
10
Decimal
18542421
12
Duodecimal
6262699
16
Hexadecimal
11aef55
20
Vigesimal
5fhg11
36
Base36
b1ff9
md5
4584c4f140727bb499f38d49bf950718
sha1
f4f581e0e622c37afc946f1e599aea1d9e46f447
sha256
843f195a4dae77b61c6e6f8ff7da7a70e808aef1205061c715b93a8c71196317
sha512
ae69d237ed38a8a37277220b1dac6ebbfed9ec64bca5b678ea15c7583272012b8bfb0c8474ec2e34be2d7a642a81479fd37ba1bb4cf3c8d603a047d10a117cb8
ripemd-160
1ed8dec9fc131866daa60ea2897a91fed0c86458
Diameter
37084842
Circumference
116505467.18674
Area
1.0801467106891E+15
Volume
2.6704713401816E+22
Surface area
4.3205868427564E+15
Circumference
116505467.18674
Perimeter
74169684
Area
343821376541241
Diagonal
26222943.257432
Surface area
2062928259247446
Volume
6.3752807126272E+21
Space diagonal
32116415.267332
Perimeter
55627263
Area
1.4887902322442E+14
Altitude
16058207.633666
Surface area
1.4887902322442E+14
Volume
7.5133403731108E+20
Height
8740981.0858106