20128765 (number)

20128765 is an odd 8-digits composite number following 20128764 and preceding 20128766. In scientific notation, it is written as 2.0128765 × 10^7. The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors. There are 14664960 positive integers (up to 20128765) that are relatively prime to 20128765.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty-eight thousand seven hundred sixty-five

Notation

Scientific notation 2.0128765 × 10^7
Engineering notation 2.0128765 × 10^6

Prime Factorization of 20128765

Prime Factorization 5 × 17 × 31 × 7639

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20128765
Product of the distinct prime numbers

The prime factorization of 20128765 is 5 × 17 × 31 × 7639. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 2, 15, 95, 82, 876, 2966, 1166, 44527, 53189, 352692, 118768, 5761382, 3146533, 98558147, 34346082, 654868883, 36097661, 2734868125, 374709488

Basic calculations (n = 20128765)

Multiplication

n×y
n×2 40257530
n×3 60386295
n×4 80515060
n×5 100643825

Division

n÷y
n÷2 10064382.5
n÷3 6709588.3333333
n÷3 5032191.25
n÷5 4025753

Exponentiation

ny
n2 405167180425225
n3 8.155514960492E+21
n4 1.6416044409373E+29
n5 3.3043470014583E+36

Nth Root

y√n
2√n 4486.5092221013
3√n 272.0230525805
4√n 66.981409526086
5√n 28.891056654468

Divisors of 20128765

1, 5, 17, 31, 85, 155, 527, 2635, 7639, 38195, 129863, 236809, 649315, 1184045, 4025753, 20128765

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 -20128764
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 20128765 can be divided by 16 positive divisors. The sum of these divisors (counting 20128765) is 1, the average is 0.0625.

Base conversion 20128765

Base System Value
2 Binary 1001100110010001111111101
3 Ternary 1101212122110211
4 Quaternary 1030302033331
5 Quinary 20123110030
6 Senary 1555232421
8 Octal 114621775
10 Decimal 20128765
12 Duodecimal 68a8711
16 Hexadecimal 13323fd
20 Vigesimal 65g1i5
36 Base36 bzfgd

Cryptographic Hash Functions

md5 7a3287ca79d7c1e57a5400b71f421673
sha1 b9ddc9321f2a4f92101e0a88e013709a26989ea8
sha256 e0b3eb568bbc02e317686c675247e77a489395d648ae2e485bf19d03fd03d47c
sha512 7bdba79cbd421753504a4e2e8f0e359c5b8078506d6420e82199009236b9b03752b0c7fd3ffea06c1176fc1781795a252297ab756a599a755667d6f9123d1b32
ripemd-160 412db2bb1784e9349df2faea9eaad40a408ac264

20128765 as geometric shapes

Circle

Radius = n
Diameter 40257530
Circumference 126472760.49967
Area 1.2728702374996E+15

Sphere

Radius = n
Volume 3.4161741181498E+22
Surface area 5.0914809499983E+15
Circumference 126472760.49967

Square

Length = n
Perimeter 80515060
Area 405167180425225
Diagonal 28466372.456821

Cube

Length = n
Surface area 2431003082551350
Volume 8.155514960492E+21
Space diagonal 34864043.673614

Equilateral Triangle

Length = n
Perimeter 60386295
Area 1.7544253551398E+14
Altitude 17432021.836807

Triangular Pyramid

Length = n
Surface area 1.7544253551398E+14
Volume 9.611366554387E+20
Height 9488790.8189403