18998428 is an even 8-digits composite number following 18998427
and preceding 18998429 . In scientific notation, it is written as 1.8998428 × 10^7.
The sum of its digits is 49. It has a total of 3 prime factors and 6 positive divisors.
There are 9499212 positive integers (up to 18998428) that are relatively prime to 18998428.
18998428 has 6 divisors, whose sum is 33247256
The reverse of 18998428 is 82489981
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
eighteen million nine hundred ninety-eight thousand four hundred twenty-eight
Scientific notation
1.8998428 × 10^7
Engineering notation
1.8998428 × 10^6
Prime Factorization
2 × 2 × 4749607
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
9499214
Product of the distinct prime numbers
The prime factorization of 18998428 is 2 × 2 × 4749607.
Since it has a total of 3 prime factors.
3 , 4 , 7 , 45 , 875 , 612 , 4075 , 3659 , 35232 , 42470 , 673230 , 669759 , 2744720 , 518278 , 63674943 , 2241404 , 328989079 , 297510897 , 8074702991 , 9890417182
n×2
37996856
n×3
56995284
n×4
75993712
n×5
94992140
n÷2
9499214
n÷3
6332809.3333333
n÷3
4749607
n÷5
3799685.6
n2
360940266471184
n3
6.8572976648536E+21
n4
1.3027787596029E+29
n5
2.4750748464245E+36
2 √n
4358.7186190439
3 √n
266.83280549836
4 √n
66.020592386345
5 √n
28.559035313807
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18998427
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18998428 can be divided by 6 positive divisors.
The sum of these divisors (counting 18998428) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001000011110010010011100
3
Ternary
1022202012221111
4
Quaternary
1020132102130
5
Quinary
14330422203
6
Senary
1515111404
8
Octal
110362234
10
Decimal
18998428
12
Duodecimal
6442564
16
Hexadecimal
121e49c
20
Vigesimal
5ieg18
36
Base36
bb7a4
md5
1b66fd8923d45183e8f6365d2112e3ed
sha1
71d5370f689b3786024cfb20e2125d0ec6506d2a
sha256
c8a9b76a21438b39c8768c14705eb053ba62a4fbff793d2396408d98b7e92391
sha512
99cbd82d47db812b2e3462a516f3a87cdd3e84f7e0a0866bdcd25c43910a3175df2ba2881a1026ec495131dfcc3257686e2c38918891906146f82459fd46cb9e
ripemd-160
a4f95b5eb015245421014ab844722424d8fe221d
Diameter
37996856
Circumference
119370643.66911
Area
1.1339272895306E+15
Volume
2.8723781289843E+22
Surface area
4.5357091581225E+15
Circumference
119370643.66911
Perimeter
75993712
Area
360940266471184
Diagonal
26867834.541369
Surface area
2165641598827104
Volume
6.8572976648536E+21
Space diagonal
32906242.559939
Perimeter
56995284
Area
1.5629172000638E+14
Altitude
16453121.27997
Surface area
1.5629172000638E+14
Volume
8.0814027990544E+20
Height
8955944.8471229