18742542 is an even 8-digits composite number following 18742541
and preceding 18742543 . In scientific notation, it is written as 1.8742542 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 4942944 positive integers (up to 18742542) that are relatively prime to 18742542.
18742542 has 16 divisors, whose sum is 32954880
The reverse of 18742542 is 24524781
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighteen million seven hundred forty-two thousand five hundred forty-two
Scientific notation
1.8742542 × 10^7
Engineering notation
1.8742542 × 10^6
Prime Factorization
2 × 39 × 7 × 34327
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
18742542
Product of the distinct prime numbers
The prime factorization of 18742542 is 2 × 39 × 7 × 34327.
Since it has a total of 4 prime factors.
9 , 5 , 48 , 95 , 318 , 225 , 6866 , 3895 , 10679 , 94032 , 58160 , 985767 , 6083231 , 9012075 , 38302829 , 32305318 , 727966402 , 150864913 , 3387155489 , 4204810038
n×2
37485084
n×3
56227626
n×4
74970168
n×5
93712710
n÷2
9371271
n÷3
6247514
n÷3
4685635.5
n÷5
3748508.4
n2
351282880621764
n3
6.5839341439344E+21
n4
1.2339966221792E+29
n5
2.3128233519053E+36
2 √n
4329.2657576083
3 √n
265.62941403507
4 √n
65.797156151374
5 √n
28.481686285412
1 , 2 , 7 , 14 , 39 , 78 , 273 , 546 , 34327 , 68654 , 240289 , 480578 , 1338753 , 2677506 , 9371271 , 18742542
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
-18742541
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 18742542 can be divided by 16 positive divisors.
The sum of these divisors (counting 18742542) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000111011111110100001110
3
Ternary
1022021012221020
4
Quaternary
1013133310032
5
Quinary
14244230132
6
Senary
1505415010
8
Octal
107376416
10
Decimal
18742542
12
Duodecimal
633a466
16
Hexadecimal
11dfd0e
20
Vigesimal
5h2g72
36
Base36
b5pu6
md5
fc41d355f8e0e6944ca97c01613d7556
sha1
2870660258a9115c241be0963a81762085cfa06e
sha256
c8e84555f0b6290efa329d2815c11b0bcfe928829ffc839205ca0c335e07582d
sha512
88f45472e274ed3cf6f137b0d74f90ce3ca029c23d160c053d3d196914f3059a25c95a3ec5e19cab6b43d9b8bab41c2045856bfd38ac2dc73badad1866c58a4e
ripemd-160
ac095015b381727d2426dbab4794390df2279fae
Diameter
37485084
Circumference
117762864.5136
Area
1.1035877170932E+15
Volume
2.7578718851071E+22
Surface area
4.4143508683728E+15
Circumference
117762864.5136
Perimeter
74970168
Area
351282880621764
Diagonal
26505957.089747
Surface area
2107697283730584
Volume
6.5839341439344E+21
Space diagonal
32463035.006994
Perimeter
56227626
Area
1.5210994926651E+14
Altitude
16231517.503497
Surface area
1.5210994926651E+14
Volume
7.7592408001028E+20
Height
8835319.0299158