20128788 (number)

20128788 is an even 8-digits composite number following 20128787 and preceding 20128789. In scientific notation, it is written as 2.0128788 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors. There are 6709584 positive integers (up to 20128788) that are relatively prime to 20128788.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty-eight thousand seven hundred eighty-eight

Notation

Scientific notation 2.0128788 × 10^7
Engineering notation 2.0128788 × 10^6

Prime Factorization of 20128788

Prime Factorization 2 × 2 × 9 × 559133

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10064394
Product of the distinct prime numbers

The prime factorization of 20128788 is 2 × 2 × 9 × 559133. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 4, 36, 68, 602, 164, 8505, 3762, 99117, 39684, 42453, 533745, 4967936, 9929647, 58337769, 68778979, 554802066, 44030920, 346152954, 1289208081

Basic calculations (n = 20128788)

Multiplication

n×y
n×2 40257576
n×3 60386364
n×4 80515152
n×5 100643940

Division

n÷y
n÷2 10064394
n÷3 6709596
n÷3 5032197
n÷5 4025757.6

Exponentiation

ny
n2 405168106348944
n3 8.1555429170593E+21
n4 1.6416119440239E+29
n5 3.3043658799525E+36

Nth Root

y√n
2√n 4486.5117853406
3√n 272.02315618891
4√n 66.981428660044
5√n 28.8910632569

Divisors of 20128788

1, 2, 4, 9, 18, 36, 559133, 1118266, 2236532, 5032197, 10064394, 20128788

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 -20128787
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 20128788 can be divided by 12 positive divisors. The sum of these divisors (counting 20128788) is 1, the average is 0.083333333333333.

Base conversion 20128788

Base System Value
2 Binary 1001100110010010000010100
3 Ternary 1101212122111200
4 Quaternary 1030302100110
5 Quinary 20123110123
6 Senary 1555232500
8 Octal 114622024
10 Decimal 20128788
12 Duodecimal 68a8730
16 Hexadecimal 1332414
20 Vigesimal 65g1j8
36 Base36 bzfh0

Cryptographic Hash Functions

md5 97e873abf440528576569f52404c8b6e
sha1 4c63d18d5eba1d29ab19e3e45878ecd4e156fdcd
sha256 efe5b77dd03c1cbdc4d851859a01e31cec815e44e14e2198150764e7b5ed5f1f
sha512 883437e8907900a1e4f9e9d05e89269b6284ca709168e5c96b249be6d41927f375cd6c89d60abb7625b7f78241aeae552c64710041f9867abe5c63340bd2771e
ripemd-160 66121263599ffad34ecdffe39d1ce80b56679c6d

20128788 as geometric shapes

Circle

Radius = n
Diameter 40257576
Circumference 126472905.01293
Area 1.2728731463747E+15

Sphere

Radius = n
Volume 3.4161858285693E+22
Surface area 5.0914925854989E+15
Circumference 126472905.01293

Square

Length = n
Perimeter 80515152
Area 405168106348944
Diagonal 28466404.983733

Cube

Length = n
Surface area 2431008638093664
Volume 8.1555429170593E+21
Space diagonal 34864083.510783

Equilateral Triangle

Length = n
Perimeter 60386364
Area 1.7544293645071E+14
Altitude 17432041.755391

Triangular Pyramid

Length = n
Surface area 1.7544293645071E+14
Volume 9.6113995015176E+20
Height 9488801.6612443