128642018 (number)

128642018 is an even 9-digits composite number following 128642017 and preceding 128642019. In scientific notation, it is written as 1.28642018 × 10^8. The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors. There are 63450000 positive integers (up to 128642018) that are relatively prime to 128642018.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million six hundred forty-two thousand eighteen

Notation

Scientific notation 1.28642018 × 10^8
Engineering notation 1.28642018 × 10^6

Prime Factorization of 128642018

Prime Factorization 2 × 109 × 251 × 2351

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 128642018
Product of the distinct prime numbers

The prime factorization of 128642018 is 2 × 109 × 251 × 2351. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 9, 31, 17, 711, 650, 6414, 2808, 71275, 48156, 164101, 404470, 8160660, 7393977, 61875485, 6245195, 875241846, 766127926, 3669314818, 7172616814

Basic calculations (n = 128642018)

Multiplication

n×y
n×2 257284036
n×3 385926054
n×4 514568072
n×5 643210090

Division

n÷y
n÷2 64321009
n÷3 42880672.666667
n÷3 32160504.5
n÷5 25728403.6

Exponentiation

ny
n2 16548768795112324
n3 2.1288670132187E+24
n4 2.7386174863408E+32
n5 3.5230127997297E+40

Nth Root

y√n
2√n 11342.046464373
3√n 504.80961094166
4√n 106.49904442939
5√n 41.867455639971

Divisors of 128642018

1, 2, 109, 218, 251, 502, 2351, 4702, 27359, 54718, 256259, 512518, 590101, 1180202, 64321009, 128642018

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 -128642017
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 128642018 can be divided by 16 positive divisors. The sum of these divisors (counting 128642018) is 1, the average is 0.0625.

Base conversion 128642018

Base System Value
2 Binary 111101010101110101111100010
3 Ternary 22222001200200012
4 Quaternary 13222232233202
5 Quinary 230413021033
6 Senary 20433124522
8 Octal 752565742
10 Decimal 128642018
12 Duodecimal 370b9742
16 Hexadecimal 7aaebe2
20 Vigesimal 204050i
36 Base36 24l8te

Cryptographic Hash Functions

md5 cc099b6cb031b162aaba778d2b4cb109
sha1 2c4077677cc3683799d220817296a558e218ee26
sha256 1c5fad182d6cd3c8170d5d59a7d7c1b50ab5ff0c57b7c8fe52721fc6287ae76a
sha512 da8527ff6a6f66aba5f0023a464d6a0c84cca19de0c1f254c11fe59e6b677717504551719cb48b07a6e346c2bed83b79d072288231887f15ecfb9566ed1f2c2f
ripemd-160 b4b69bee65ad713aefd3c44c45b8df6164e0ad0a

128642018 as geometric shapes

Circle

Radius = n
Diameter 257284036
Circumference 808281637.38353
Area 5.1989490472681E+16

Sphere

Radius = n
Volume 8.9173772922633E+24
Surface area 2.0795796189072E+17
Circumference 808281637.38353

Square

Length = n
Perimeter 514568072
Area 16548768795112324
Diagonal 181927286.54664

Cube

Length = n
Surface area 99292612770673944
Volume 2.1288670132187E+24
Space diagonal 222814511.16419

Equilateral Triangle

Length = n
Perimeter 385926054
Area 7.1658270889612E+15
Altitude 111407255.5821

Triangular Pyramid

Length = n
Surface area 7.1658270889612E+15
Volume 2.5088938354855E+23
Height 60642428.848881