18998428 (number)

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.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred ninety-eight thousand four hundred twenty-eight

Notation

Scientific notation 1.8998428 × 10^7
Engineering notation 1.8998428 × 10^6

Prime Factorization of 18998428

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.

Most popular turbo-numbers

Basic calculations (n = 18998428)

Multiplication

n×y
n×2 37996856
n×3 56995284
n×4 75993712
n×5 94992140

Division

n÷y
n÷2 9499214
n÷3 6332809.3333333
n÷3 4749607
n÷5 3799685.6

Exponentiation

ny
n2 360940266471184
n3 6.8572976648536E+21
n4 1.3027787596029E+29
n5 2.4750748464245E+36

Nth Root

y√n
2√n 4358.7186190439
3√n 266.83280549836
4√n 66.020592386345
5√n 28.559035313807

Divisors of 18998428

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 conversion 18998428

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

Cryptographic Hash Functions

md5 1b66fd8923d45183e8f6365d2112e3ed
sha1 71d5370f689b3786024cfb20e2125d0ec6506d2a
sha256 c8a9b76a21438b39c8768c14705eb053ba62a4fbff793d2396408d98b7e92391
sha512 99cbd82d47db812b2e3462a516f3a87cdd3e84f7e0a0866bdcd25c43910a3175df2ba2881a1026ec495131dfcc3257686e2c38918891906146f82459fd46cb9e
ripemd-160 a4f95b5eb015245421014ab844722424d8fe221d

18998428 as geometric shapes

Circle

Radius = n
Diameter 37996856
Circumference 119370643.66911
Area 1.1339272895306E+15

Sphere

Radius = n
Volume 2.8723781289843E+22
Surface area 4.5357091581225E+15
Circumference 119370643.66911

Square

Length = n
Perimeter 75993712
Area 360940266471184
Diagonal 26867834.541369

Cube

Length = n
Surface area 2165641598827104
Volume 6.8572976648536E+21
Space diagonal 32906242.559939

Equilateral Triangle

Length = n
Perimeter 56995284
Area 1.5629172000638E+14
Altitude 16453121.27997

Triangular Pyramid

Length = n
Surface area 1.5629172000638E+14
Volume 8.0814027990544E+20
Height 8955944.8471229