18142421 is an odd 8-digits composite number following 18142420
and preceding 18142422 . In scientific notation, it is written as 1.8142421 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 16493100 positive integers (up to 18142421) that are relatively prime to 18142421.
18142421 has 4 divisors, whose sum is 19791744
The reverse of 18142421 is 12424181
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
eighteen million one hundred forty-two thousand four hundred twenty-one
Scientific notation
1.8142421 × 10^7
Engineering notation
1.8142421 × 10^6
Prime Factorization
11 × 1649311
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18142421
Product of the distinct prime numbers
The prime factorization of 18142421 is 11 × 1649311.
Since it has a total of 2 prime factors.
1 , 5 , 49 , 18 , 573 , 877 , 7975 , 1914 , 65580 , 4783 , 239235 , 516528 , 8339577 , 3112949 , 45919814 , 89450164 , 918931493 , 972867023 , 4519470468 , 3558753116
n×2
36284842
n×3
54427263
n×4
72569684
n×5
90712105
n÷2
9071210.5
n÷3
6047473.6666667
n÷3
4535605.25
n÷5
3628484.2
n2
329147439741241
n3
5.9715314228577E+21
n4
1.0833803708821E+29
n5
1.965514279168E+36
2 √n
4259.3920927757
3 √n
262.76352553025
4 √n
65.264018362155
5 √n
28.296912256198
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
-18142420
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 18142421 can be divided by 4 positive divisors.
The sum of these divisors (counting 18142421) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000101001101010011010101
3
Ternary
1021010201201112
4
Quaternary
1011031103111
5
Quinary
14121024141
6
Senary
1444504405
8
Octal
105152325
10
Decimal
18142421
12
Duodecimal
60ab105
16
Hexadecimal
114d4d5
20
Vigesimal
5d7g11
36
Base36
asus5
md5
5f53922234e1345a9a2e778bbaec6792
sha1
2984d6b7a9091cc0f6044a253c59ed966fe00c8a
sha256
8bfb1cf71d11e5ac0cf39121c1f5180ff98f112a09e8945566df038c7a286272
sha512
d234fb5672d85a0d8a195b82a5443111dffbb739305e078a3867722827a34eb32c87e559e3c31d831440c9276222d74592192fb95a72ab405025f6227eb47d0f
ripemd-160
bf89e72e1e58f2f427a4f364791b293940eeb5f8
Diameter
36284842
Circumference
113992193.06387
Area
1.034047178639E+15
Volume
2.5013492331641E+22
Surface area
4.1361887145559E+15
Circumference
113992193.06387
Perimeter
72569684
Area
329147439741241
Diagonal
25657257.832482
Surface area
1974884638447446
Volume
5.9715314228577E+21
Space diagonal
31423594.944305
Perimeter
54427263
Area
1.4252502220326E+14
Altitude
15711797.472152
Surface area
1.4252502220326E+14
Volume
7.0375172719521E+20
Height
8552419.2774942