128642020 (number)

128642020 is an even 9-digits composite number following 128642019 and preceding 128642021. In scientific notation, it is written as 1.28642020 × 10^8. The sum of its digits is 25. It has a total of 5 prime factors and 24 positive divisors. There are 46889856 positive integers (up to 128642020) that are relatively prime to 128642020.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.28642020 × 10^8
Engineering notation 1.28642020 × 10^6

Prime Factorization of 128642020

Prime Factorization 2 × 2 × 65 × 79 × 6263

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 64321010
Product of the distinct prime numbers

The prime factorization of 128642020 is 2 × 2 × 65 × 79 × 6263. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 9, 73, 59, 366, 728, 8536, 7116, 76155, 25850, 9584, 550876, 4195658, 2804879, 92607950, 79289320, 135219615, 545406739, 7830645487, 5563902455

Basic calculations (n = 128642020)

Multiplication

n×y
n×2 257284040
n×3 385926060
n×4 514568080
n×5 643210100

Division

n÷y
n÷2 64321010
n÷3 42880673.333333
n÷3 32160505
n÷5 25728404

Exponentiation

ny
n2 16548769309680400
n3 2.1288671125113E+24
n4 2.7386176566502E+32
n5 3.5230130735915E+40

Nth Root

y√n
2√n 11342.046552541
3√n 504.80961355776
4√n 106.49904484333
5√n 41.867455770154

Divisors of 128642020

1, 2, 4, 65, 79, 130, 158, 260, 316, 5135, 6263, 10270, 12526, 20540, 25052, 407095, 494777, 814190, 989554, 1628380, 1979108, 32160505, 64321010, 128642020

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 -128642019
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 128642020 can be divided by 24 positive divisors. The sum of these divisors (counting 128642020) is 1, the average is 0.041666666666667.

Base conversion 128642020

Base System Value
2 Binary 111101010101110101111100100
3 Ternary 22222001200200021
4 Quaternary 13222232233210
5 Quinary 230413021040
6 Senary 20433124524
8 Octal 752565744
10 Decimal 128642020
12 Duodecimal 370b9744
16 Hexadecimal 7aaebe4
20 Vigesimal 2040510
36 Base36 24l8tg

Cryptographic Hash Functions

md5 fede19b1273840b18a9dd4e38b722890
sha1 de7209d711d0d3de3608f226db70117506e620a6
sha256 236a695587b8114497073701f95d82ec78853e776a20710006c78264248ac72b
sha512 fe83cb5d334f153754516e1c665d18c7ff54c68d18ad4662c0529525115035ebcd2b8873ed91355efbce79ed06076dc9a444415e4ba1b2700d2a39492c7eeaf3
ripemd-160 df20a7bd1475aa417793b36b1cb005cdf72c560e

128642020 as geometric shapes

Circle

Radius = n
Diameter 257284040
Circumference 808281649.9499
Area 5.1989492089244E+16

Sphere

Radius = n
Volume 8.9173777081792E+24
Surface area 2.0795796835698E+17
Circumference 808281649.9499

Square

Length = n
Perimeter 514568080
Area 16548769309680400
Diagonal 181927289.37507

Cube

Length = n
Surface area 99292615858082400
Volume 2.1288671125113E+24
Space diagonal 222814514.62829

Equilateral Triangle

Length = n
Perimeter 385926060
Area 7.1658273117757E+15
Altitude 111407257.31415

Triangular Pyramid

Length = n
Surface area 7.1658273117757E+15
Volume 2.5088939525029E+23
Height 60642429.79169