18897390 (number)

18897390 is an even 8-digits composite number following 18897389 and preceding 18897391. In scientific notation, it is written as 1.8897390 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 5039280 positive integers (up to 18897390) that are relatively prime to 18897390.

Interesting facts

Basic properties

Name

Name eighteen million eight hundred ninety-seven thousand three hundred ninety

Notation

Scientific notation 1.8897390 × 10^7
Engineering notation 1.8897390 × 10^6

Prime Factorization of 18897390

Prime Factorization 2 × 5 × 9 × 209971

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18897390
Product of the distinct prime numbers

The prime factorization of 18897390 is 2 × 5 × 9 × 209971. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 9, 90, 82, 449, 264, 1662, 2919, 66693, 24230, 457663, 890895, 7071385, 6357158, 57256941, 42443966, 929317267, 164510789, 6333685627, 3983367854

Basic calculations (n = 18897390)

Multiplication

n×y
n×2 37794780
n×3 56692170
n×4 75589560
n×5 94486950

Division

n÷y
n÷2 9448695
n÷3 6299130
n÷3 4724347.5
n÷5 3779478

Exponentiation

ny
n2 357111348812100
n3 6.7484724319283E+21
n4 1.275285154504E+29
n5 2.4099560925872E+36

Nth Root

y√n
2√n 4347.1128349745
3√n 266.35893842686
4√n 65.932638616807
5√n 28.528593785985

Divisors of 18897390

1, 2, 5, 9, 10, 18, 45, 90, 209971, 419942, 1049855, 1889739, 2099710, 3779478, 9448695, 18897390

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 -18897389
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 18897390 can be divided by 16 positive divisors. The sum of these divisors (counting 18897390) is 1, the average is 0.0625.

Base conversion 18897390

Base System Value
2 Binary 1001000000101100111101110
3 Ternary 1022120002100100
4 Quaternary 1020011213232
5 Quinary 14314204030
6 Senary 1513011530
8 Octal 110054756
10 Decimal 18897390
12 Duodecimal 63b3ba6
16 Hexadecimal 12059ee
20 Vigesimal 5i239a
36 Base36 b91bi

Cryptographic Hash Functions

md5 20aa090218fb82c067841c7b802ca288
sha1 fa2a57e1b7bea7f0e92dad2c46587ef8869f614e
sha256 971a24b25eb9a994a549e761eebaa661f0aba37f4baf5439308e71428b60ecfd
sha512 284d5d4516d4a7797cb6babfa3e3adefd3e46ed021fd8522054ad35ba89195ad94caecb473462731d70309722185c8a28bf8c27a029f33bfde4328f7fb3dde70
ripemd-160 dc82564eecf18902ba7dc4e8dcf30ffb002ae1c7

18897390 as geometric shapes

Circle

Radius = n
Diameter 37794780
Circumference 118735803.19204
Area 1.1218983899416E+15

Sphere

Radius = n
Volume 2.8267935220132E+22
Surface area 4.4875935597665E+15
Circumference 118735803.19204

Square

Length = n
Perimeter 75589560
Area 357111348812100
Diagonal 26724945.231454

Cube

Length = n
Surface area 2142668092872600
Volume 6.7484724319283E+21
Space diagonal 32731239.610444

Equilateral Triangle

Length = n
Perimeter 56692170
Area 1.546337500255E+14
Altitude 16365619.805222

Triangular Pyramid

Length = n
Surface area 1.546337500255E+14
Volume 7.9531510321116E+20
Height 8908315.0771512