128665965 (number)

128665965 is an odd 9-digits composite number following 128665964 and preceding 128665966. In scientific notation, it is written as 1.28665965 × 10^8. The sum of its digits is 48. It has a total of 5 prime factors and 32 positive divisors. There are 65640960 positive integers (up to 128665965) that are relatively prime to 128665965.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million six hundred sixty-five thousand nine hundred sixty-five

Notation

Scientific notation 1.28665965 × 10^8
Engineering notation 1.28665965 × 10^6

Prime Factorization of 128665965

Prime Factorization 3 × 31 × 5 × 89 × 3109

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 128665965
Product of the distinct prime numbers

The prime factorization of 128665965 is 3 × 31 × 5 × 89 × 3109. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 2, 66, 97, 52, 883, 1707, 1646, 55924, 5422, 819002, 715030, 7621966, 1695268, 14925019, 54101295, 496918019, 834963125, 8772657960, 1169218711

Basic calculations (n = 128665965)

Multiplication

n×y
n×2 257331930
n×3 385997895
n×4 514663860
n×5 643329825

Division

n÷y
n÷2 64332982.5
n÷3 42888655
n÷3 32166491.25
n÷5 25733193

Exponentiation

ny
n2 16554930549381225
n3 2.1300561146441E+24
n4 2.7406572549484E+32
n5 3.5262931044218E+40

Nth Root

y√n
2√n 11343.102088935
3√n 504.84093281173
4√n 106.5040003424
5√n 41.869014268061

Divisors of 128665965

1, 3, 5, 15, 31, 89, 93, 155, 267, 445, 465, 1335, 2759, 3109, 8277, 9327, 13795, 15545, 41385, 46635, 96379, 276701, 289137, 481895, 830103, 1383505, 1445685, 4150515, 8577731, 25733193, 42888655, 128665965

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128665964
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128665965 can be divided by 32 positive divisors. The sum of these divisors (counting 128665965) is 1, the average is 0.03125.

Base conversion 128665965

Base System Value
2 Binary 111101010110100100101101101
3 Ternary 22222002220112010
4 Quaternary 13222310211231
5 Quinary 230414302330
6 Senary 20433431433
8 Octal 752644555
10 Decimal 128665965
12 Duodecimal 3710b579
16 Hexadecimal 7ab496d
20 Vigesimal 20434i5
36 Base36 24lral

Cryptographic Hash Functions

md5 2fcddec4695fb61221128e55941d6a40
sha1 c8d5a2d100a7a8c20c34ff76dd8f017da88b53ba
sha256 c882197d2e904668a57249b6a0278d43f0fd41a2d4d859a552b171983a0bf8ee
sha512 bfe595b9e4a09bef4ecc90f7c012bf23a5ff7350c38d755abcdb4fa3f02f85c729d3431b65c88ab1e933f979a5f81359260c7f9d7e0ad25f4c9a30cdfd8fdab2
ripemd-160 ff3f959299193f9ddb34ec84feea47fbfc408876

128665965 as geometric shapes

Circle

Radius = n
Diameter 257331930
Circumference 808432100.82208
Area 5.2008848194625E+16

Sphere

Radius = n
Volume 8.9223581886666E+24
Surface area 2.080353927785E+17
Circumference 808432100.82208

Square

Length = n
Perimeter 514663860
Area 16554930549381225
Diagonal 181961152.71882

Cube

Length = n
Surface area 99329583296287350
Volume 2.1300561146441E+24
Space diagonal 222855988.58488

Equilateral Triangle

Length = n
Perimeter 385997895
Area 7.1684952068256E+15
Altitude 111427994.29244

Triangular Pyramid

Length = n
Surface area 7.1684952068256E+15
Volume 2.5102952049545E+23
Height 60653717.572941