18542990 (number)

18542990 is an even 8-digits composite number following 18542989 and preceding 18542991. In scientific notation, it is written as 1.8542990 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 7417192 positive integers (up to 18542990) that are relatively prime to 18542990.

Interesting facts

Basic properties

Name

Name eighteen million five hundred forty-two thousand nine hundred ninety

Notation

Scientific notation 1.8542990 × 10^7
Engineering notation 1.8542990 × 10^6

Prime Factorization of 18542990

Prime Factorization 2 × 5 × 1854299

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 18542990
Product of the distinct prime numbers

The prime factorization of 18542990 is 2 × 5 × 1854299. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18542990)

Multiplication

n×y
n×2 37085980
n×3 55628970
n×4 74171960
n×5 92714950

Division

n÷y
n÷2 9271495
n÷3 6180996.6666667
n÷3 4635747.5
n÷5 3708598

Exponentiation

ny
n2 343842478140100
n3 6.3758676337271E+21
n4 1.1822764977353E+29
n5 2.192294127474E+36

Nth Root

y√n
2√n 4306.1572196101
3√n 264.68332886519
4√n 65.621316807956
5√n 28.420777381059

Divisors of 18542990

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 -18542989
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 18542990 can be divided by 8 positive divisors. The sum of these divisors (counting 18542990) is 1, the average is 0.125.

Base conversion 18542990

Base System Value
2 Binary 1000110101111000110001110
3 Ternary 1021220002012102
4 Quaternary 1012233012032
5 Quinary 14221333430
6 Senary 1501235102
8 Octal 106570616
10 Decimal 18542990
12 Duodecimal 6262a92
16 Hexadecimal 11af18e
20 Vigesimal 5fhh9a
36 Base36 b1fv2

Cryptographic Hash Functions

md5 3c1e96c26f15fc3432b22f35794faa7c
sha1 c94808498987c6bf948d4b0a755bf5990cd060d4
sha256 3b01ddc1532ce1168007fd62f571e76a945f23af1355ef30208760bbd49127a7
sha512 a6db5ecc1f12e64803ae01a401b4ee05a42490f2dc113bf4bfc320239a3b7c8e23c80a244962de56418e1012897425bb5e5a9171c09cfec2200d0b342476db17
ripemd-160 b898342f7b7647c79d4d80ee72b3e5d35fea1076

18542990 as geometric shapes

Circle

Radius = n
Diameter 37085980
Circumference 116509042.31918
Area 1.080213003317E+15

Sphere

Radius = n
Volume 2.6707171891171E+22
Surface area 4.3208520132682E+15
Circumference 116509042.31918

Square

Length = n
Perimeter 74171960
Area 343842478140100
Diagonal 26223747.944949

Cube

Length = n
Surface area 2063054868840600
Volume 6.3758676337271E+21
Space diagonal 32117400.804242

Equilateral Triangle

Length = n
Perimeter 55628970
Area 1.4888816048476E+14
Altitude 16058700.402121

Triangular Pyramid

Length = n
Surface area 1.4888816048476E+14
Volume 7.5140320662604E+20
Height 8741249.3149829