18128538 (number)

18128538 is an even 8-digits composite number following 18128537 and preceding 18128539. In scientific notation, it is written as 1.8128538 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors. There are 5834304 positive integers (up to 18128538) that are relatively prime to 18128538.

Interesting facts

Basic properties

Name

Name eighteen million one hundred twenty-eight thousand five hundred thirty-eight

Notation

Scientific notation 1.8128538 × 10^7
Engineering notation 1.8128538 × 10^6

Prime Factorization of 18128538

Prime Factorization 2 × 3 × 3 × 29 × 34729

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 6042846
Product of the distinct prime numbers

The prime factorization of 18128538 is 2 × 3 × 3 × 29 × 34729. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 6, 98, 48, 562, 861, 8654, 5098, 92117, 50793, 300899, 887718, 8483176, 5785987, 40998620, 86616369, 670279, 999470183, 4174712404, 2099084215

Basic calculations (n = 18128538)

Multiplication

n×y
n×2 36257076
n×3 54385614
n×4 72514152
n×5 90642690

Division

n÷y
n÷2 9064269
n÷3 6042846
n÷3 4532134.5
n÷5 3625707.6

Exponentiation

ny
n2 328643890017444
n3 5.9578332486491E+21
n4 1.080068064458E+29
n5 1.9580054949113E+36

Nth Root

y√n
2√n 4257.7620882337
3√n 262.69648418521
4√n 65.251529393829
5√n 28.292580239716

Divisors of 18128538

1, 2, 3, 6, 9, 18, 29, 58, 87, 174, 261, 522, 34729, 69458, 104187, 208374, 312561, 625122, 1007141, 2014282, 3021423, 6042846, 9064269, 18128538

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18128537
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18128538 can be divided by 24 positive divisors. The sum of these divisors (counting 18128538) is 1, the average is 0.041666666666667.

Base conversion 18128538

Base System Value
2 Binary 1000101001001111010011010
3 Ternary 1021010000200100
4 Quaternary 1011021322122
5 Quinary 14120103123
6 Senary 1444320230
8 Octal 105117232
10 Decimal 18128538
12 Duodecimal 60a3076
16 Hexadecimal 1149e9a
20 Vigesimal 5d616i
36 Base36 ask2i

Cryptographic Hash Functions

md5 63358fefe03414e54b442c0c771c8827
sha1 ec5bae77d9297d402e85b123e638a16749a1a214
sha256 8cfec4d980365067867e14d88ff04298a4de145db085584a2f8dee97b24db778
sha512 f2e259f1afbf5951e0ed57a6e87658d9186f4deb909567cb6a58a9c79e145807a74bd82c43f3992b48b6d3cb36d194626b46c75b2a8df17027972bc3c6b05e4c
ripemd-160 c51b154d8e2a2540643e925b607433a60445a331

18128538 as geometric shapes

Circle

Radius = n
Diameter 36257076
Circumference 113904963.60225
Area 1.032465230526E+15

Sphere

Radius = n
Volume 2.4956113553692E+22
Surface area 4.1298609221039E+15
Circumference 113904963.60225

Square

Length = n
Perimeter 72514152
Area 328643890017444
Diagonal 25637624.305596

Cube

Length = n
Surface area 1971863340104664
Volume 5.9578332486491E+21
Space diagonal 31399548.882943

Equilateral Triangle

Length = n
Perimeter 54385614
Area 1.4230697877682E+14
Altitude 15699774.441472

Triangular Pyramid

Length = n
Surface area 1.4230697877682E+14
Volume 7.0213738188307E+20
Height 8545874.768532