18385218 (number)

18385218 is an even 8-digits composite number following 18385217 and preceding 18385219. In scientific notation, it is written as 1.8385218 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors. There are 6128352 positive integers (up to 18385218) that are relatively prime to 18385218.

Interesting facts

Basic properties

Name

Name eighteen million three hundred eighty-five thousand two hundred eighteen

Notation

Scientific notation 1.8385218 × 10^7
Engineering notation 1.8385218 × 10^6

Prime Factorization of 18385218

Prime Factorization 2 × 9 × 9 × 113489

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 2042802
Product of the distinct prime numbers

The prime factorization of 18385218 is 2 × 9 × 9 × 113489. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 5, 18, 89, 438, 18, 7293, 9676, 79188, 37303, 526507, 970632, 9042738, 6398693, 80930193, 37195203, 890203581, 731267593, 3458569089, 1340165770

Basic calculations (n = 18385218)

Multiplication

n×y
n×2 36770436
n×3 55155654
n×4 73540872
n×5 91926090

Division

n÷y
n÷2 9192609
n÷3 6128406
n÷3 4596304.5
n÷5 3677043.6

Exponentiation

ny
n2 338016240907524
n3 6.2145022766253E+21
n4 1.1425497911725E+29
n5 2.1006026986561E+36

Nth Root

y√n
2√n 4287.7987359483
3√n 263.93050856922
4√n 65.481285387111
5√n 28.372248616076

Divisors of 18385218

1, 2, 9, 18, 81, 162, 113489, 226978, 1021401, 2042802, 9192609, 18385218

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18385217
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18385218 can be divided by 12 positive divisors. The sum of these divisors (counting 18385218) is 1, the average is 0.083333333333333.

Base conversion 18385218

Base System Value
2 Binary 1000110001000100101000010
3 Ternary 1021121001210000
4 Quaternary 1012020211002
5 Quinary 14201311333
6 Senary 1454020430
8 Octal 106104502
10 Decimal 18385218
12 Duodecimal 61a7716
16 Hexadecimal 1188942
20 Vigesimal 5ei30i
36 Base36 ay24i

Cryptographic Hash Functions

md5 6d782d9e3fd0252603e92ed0c69b28a7
sha1 09a5f5d639c1ae0c73ea7edbb0cceb7281454d05
sha256 81e341e18645dc18f7c99ea4b8e2ab2de7f40f34d2fa65756ac210ba5d004a0a
sha512 1c131e87fc5ff02790cf47e776afa1283bc9a6364b85d5f34a6633e2382a472bfb0979b18c57c5a5bfdb51fdbbe99aa00f8558abc3cb618932d03071985d7fd3
ripemd-160 9aa3b93f3db9e725354825725da23dc156ed0f4c

18385218 as geometric shapes

Circle

Radius = n
Diameter 36770436
Circumference 115517731.60689
Area 1.0619093392291E+15

Sphere

Radius = n
Volume 2.6031246263951E+22
Surface area 4.2476373569165E+15
Circumference 115517731.60689

Square

Length = n
Perimeter 73540872
Area 338016240907524
Diagonal 26000624.642786

Cube

Length = n
Surface area 2028097445445144
Volume 6.2145022766253E+21
Space diagonal 31844131.68423

Equilateral Triangle

Length = n
Perimeter 55155654
Area 1.4636532575882E+14
Altitude 15922065.842115

Triangular Pyramid

Length = n
Surface area 1.4636532575882E+14
Volume 7.3238611691684E+20
Height 8666874.8809287