18742745 is an odd 8-digits composite number following 18742744
and preceding 18742746 . In scientific notation, it is written as 1.8742745 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 12719616 positive integers (up to 18742745) that are relatively prime to 18742745.
18742745 has 8 divisors, whose sum is 19013832
The reverse of 18742745 is 54724781
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighteen million seven hundred forty-two thousand seven hundred forty-five
Scientific notation
1.8742745 × 10^7
Engineering notation
1.8742745 × 10^6
Prime Factorization
245 × 113 × 677
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18742745
Product of the distinct prime numbers
The prime factorization of 18742745 is 245 × 113 × 677.
Since it has a total of 3 prime factors.
2 , 1 , 8 , 39 , 822 , 121 , 9211 , 2284 , 1586 , 39648 , 644810 , 603273 , 1587861 , 3284772 , 45531320 , 42282147 , 175877408 , 19539262 , 4081074003 , 327041020
n×2
37485490
n×3
56228235
n×4
74970980
n×5
93713725
n÷2
9371372.5
n÷3
6247581.6666667
n÷3
4685686.25
n÷5
3748549
n2
351290490135025
n3
6.5841480775258E+21
n4
1.2340500845931E+29
n5
2.3129486052756E+36
2 √n
4329.289202629
3 √n
265.6303730401
4 √n
65.797334312486
5 √n
28.48174798203
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
-18742744
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 18742745 can be divided by 8 positive divisors.
The sum of these divisors (counting 18742745) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000111011111110111011001
3
Ternary
1022021020012202
4
Quaternary
1013133313121
5
Quinary
14244231440
6
Senary
1505415545
8
Octal
107376731
10
Decimal
18742745
12
Duodecimal
633a5b5
16
Hexadecimal
11dfdd9
20
Vigesimal
5h2gh5
36
Base36
b5pzt
md5
357de821b2b2448700a1cd50569a06bc
sha1
31e7196848d4308e52aa020ae46953713c602451
sha256
eb2ce93b94bffdd2fc3221c9f4a1233e14ca9ce99f7a3070b6f66e8cfce8ae42
sha512
a2cef57ccf4ed0e3283a93d075878385cce7c66292d56720d771e7056dda98bc0734d66bf4f5992579c401f4f88b102ed1236f0dfeb925528c3507b0d9509686
ripemd-160
37c5e067a38e14997f655b8bae1be98339197e0c
Diameter
37485490
Circumference
117764140.00021
Area
1.1036116230842E+15
Volume
2.7579614974003E+22
Surface area
4.4144464923366E+15
Circumference
117764140.00021
Perimeter
74970980
Area
351290490135025
Diagonal
26506244.175101
Surface area
2107742940810150
Volume
6.5841480775258E+21
Space diagonal
32463386.613308
Perimeter
56228235
Area
1.5211324428241E+14
Altitude
16231693.306654
Surface area
1.5211324428241E+14
Volume
7.7594929232581E+20
Height
8835414.7250335