128512421 (number)

128512421 is an odd 9-digits composite number following 128512420 and preceding 128512422. In scientific notation, it is written as 1.28512421 × 10^8. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 126091440 positive integers (up to 128512421) that are relatively prime to 128512421.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million five hundred twelve thousand four hundred twenty-one

Notation

Scientific notation 1.28512421 × 10^8
Engineering notation 1.28512421 × 10^6

Prime Factorization of 128512421

Prime Factorization 439 × 61 × 4799

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 128512421
Product of the distinct prime numbers

The prime factorization of 128512421 is 439 × 61 × 4799. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128512421)

Multiplication

n×y
n×2 257024842
n×3 385537263
n×4 514049684
n×5 642562105

Division

n÷y
n÷2 64256210.5
n÷3 42837473.666667
n÷3 32128105.25
n÷5 25702484.2

Exponentiation

ny
n2 16515442351281241
n3 2.1224394804491E+24
n4 2.7275983605849E+32
n5 3.505302688344E+40

Nth Root

y√n
2√n 11336.331902339
3√n 504.64003495182
4√n 106.47221187868
5√n 41.859016586346

Divisors of 128512421

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128512420
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128512421 can be divided by 8 positive divisors. The sum of these divisors (counting 128512421) is 1, the average is 0.125.

Base conversion 128512421

Base System Value
2 Binary 111101010001111000110100101
3 Ternary 22221211002220022
4 Quaternary 13222033012211
5 Quinary 230344344141
6 Senary 20430244525
8 Octal 752170645
10 Decimal 128512421
12 Duodecimal 37056745
16 Hexadecimal 7a8f1a5
20 Vigesimal 2034111
36 Base36 24igth

Cryptographic Hash Functions

md5 630c06e60b85ae7aceac89eb41195180
sha1 408f3c397caf9eed68f5dd9d066d4103ca004444
sha256 ff705bc6a5153a6da4bc7a1a7e882392160d6499594dc0c8957366b86154898c
sha512 761f6d13e9f86f78a340a12b3c823b2ab3262ac6a5e126c5ffa39c0e0d88fbdb6f7b9926ea31203cfed84b151319d7fce59a871540f80855bf303b7527ad0bcc
ripemd-160 18939988ca77292960f0208a826c6a4d9330a3e5

128512421 as geometric shapes

Circle

Radius = n
Diameter 257024842
Circumference 807467355.41728
Area 5.1884792361571E+16

Sphere

Radius = n
Volume 8.890453705957E+24
Surface area 2.0753916944628E+17
Circumference 807467355.41728

Square

Length = n
Perimeter 514049684
Area 16515442351281241
Diagonal 181744008.7116

Cube

Length = n
Surface area 99092654107687446
Volume 2.1224394804491E+24
Space diagonal 222590042.57568

Equilateral Triangle

Length = n
Perimeter 385537263
Area 7.1513963154735E+15
Altitude 111295021.28784

Triangular Pyramid

Length = n
Surface area 7.1513963154735E+15
Volume 2.5013189154727E+23
Height 60581336.2372