18642942 is an even 8-digits composite number following 18642941
and preceding 18642943 . In scientific notation, it is written as 1.8642942 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 6112080 positive integers (up to 18642942) that are relatively prime to 18642942.
18642942 has 16 divisors, whose sum is 31582800
The reverse of 18642942 is 24924681
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
eighteen million six hundred forty-two thousand nine hundred forty-two
Scientific notation
1.8642942 × 10^7
Engineering notation
1.8642942 × 10^6
Prime Factorization
2 × 9 × 61 × 16979
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
18642942
Product of the distinct prime numbers
The prime factorization of 18642942 is 2 × 9 × 61 × 16979.
Since it has a total of 4 prime factors.
10 , 8 , 48 , 14 , 882 , 46 , 5480 , 766 , 7617 , 9157 , 151619 , 198698 , 8625588 , 376318 , 42423071 , 88124826 , 599238921 , 786254088 , 9218862938 , 3161767575
n×2
37285884
n×3
55928826
n×4
74571768
n×5
93214710
n÷2
9321471
n÷3
6214314
n÷3
4660735.5
n÷5
3728588.4
n2
347559286415364
n3
6.479527618203E+21
n4
1.2079745757356E+29
n5
2.2520199952913E+36
2 √n
4317.7473293374
3 √n
265.15804977888
4 √n
65.709568019714
5 √n
28.451350750005
1 , 2 , 9 , 18 , 61 , 122 , 549 , 1098 , 16979 , 33958 , 152811 , 305622 , 1035719 , 2071438 , 9321471 , 18642942
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
-18642941
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 18642942 can be divided by 16 positive divisors.
The sum of these divisors (counting 18642942) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000111000111011111111110
3
Ternary
1022002011022100
4
Quaternary
1013013133332
5
Quinary
14233033232
6
Senary
1503325530
8
Octal
107073776
10
Decimal
18642942
12
Duodecimal
62b08a6
16
Hexadecimal
11c77fe
20
Vigesimal
5ga772
36
Base36
b3kzi
md5
e3502ba80ecfa1a7479082b84f2ca9c1
sha1
d129a761ad5a2929c615861ccb3bcd391a6fbb6c
sha256
85595ee06745e8f661e68dce3f69819f9e7be5ebfd7ba95b431489d321db5419
sha512
e754bc71fffd8f068bf1a32af6b534de8477a317eaa4c1ef6c7d62c7834505368464ddcdaa7d9f68d6b61aed6e7b847baeaf0f60e81e59883a861953519bab7f
ripemd-160
40d9144cfa0ecc7642a0c3480c191bb3e4b7448d
Diameter
37285884
Circumference
117137059.257
Area
1.0918897008894E+15
Volume
2.7141381818772E+22
Surface area
4.3675588035577E+15
Circumference
117137059.257
Perimeter
74571768
Area
347559286415364
Diagonal
26365101.418935
Surface area
2085355718492184
Volume
6.479527618203E+21
Space diagonal
32290522.74656
Perimeter
55928826
Area
1.5049758567845E+14
Altitude
16145261.37328
Surface area
1.5049758567845E+14
Volume
7.6361965295281E+20
Height
8788367.139645