128875 (number)

128875 is an odd 6-digits composite number following 128874 and preceding 128876. In scientific notation, it is written as 1.28875 × 10^5. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 103000 positive integers (up to 128875) that are relatively prime to 128875.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight thousand eight hundred seventy-five

Notation

Scientific notation 1.28875 × 10^5
Engineering notation 1.28875 × 10^3

Prime Factorization of 128875

Prime Factorization 125 × 1031

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 128875
Product of the distinct prime numbers

The prime factorization of 128875 is 125 × 1031. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128875)

Multiplication

n×y
n×2 257750
n×3 386625
n×4 515500
n×5 644375

Division

n÷y
n÷2 64437.5
n÷3 42958.333333333
n÷3 32218.75
n÷5 25775

Exponentiation

ny
n2 16608765625
n3 2140454669921875
n4 2.7585109558618E+20
n5 3.5550309943669E+25

Nth Root

y√n
2√n 358.99164335678
3√n 50.511417867243
4√n 18.947074796833
5√n 10.520435925791

Divisors of 128875

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128874
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128875 can be divided by 4 positive divisors. The sum of these divisors (counting 128875) is 1, the average is 0.25.

Base conversion 128875

Base System Value
2 Binary 11111011101101011
3 Ternary 20112210011
4 Quaternary 133131223
5 Quinary 13111000
6 Senary 2432351
8 Octal 373553
10 Decimal 128875
12 Duodecimal 626b7
16 Hexadecimal 1f76b
20 Vigesimal g23f
36 Base36 2rfv

Cryptographic Hash Functions

md5 0bad88f8faf04c2aac9abb9bab5d406b
sha1 02a1dcf815ca8ca04bf20305d7cb58a40faccaab
sha256 f78939104041027ad3b0121f4207fa638f90b77892179b6982fa1b457cbe8437
sha512 824fb86317e4933cab334d97fd4c4ee21af8702bebf5cebbc7aedf6b540cd6a4ea941d94648db74caf4240da3377a0c65387f2cf857be0d218e65335f2a225c4
ripemd-160 fcd0423940e9dc8b08f524e20a32638b86143cda

128875 as geometric shapes

Circle

Radius = n
Diameter 257750
Circumference 809745.50646277
Area 52177976072.695

Sphere

Radius = n
Volume 8.965915555158E+15
Surface area 208711904290.78
Circumference 809745.50646277

Square

Length = n
Perimeter 515500
Area 16608765625
Diagonal 182256.77285083

Cube

Length = n
Surface area 99652593750
Volume 2140454669921875
Space diagonal 223218.04782544

Equilateral Triangle

Length = n
Perimeter 386625
Area 7191806478.3759
Altitude 111609.02391272

Triangular Pyramid

Length = n
Surface area 7191806478.3759
Volume 2.5225500198736E+14
Height 60752.257616944