128398431 (number)

128398431 is an odd 9-digits composite number following 128398430 and preceding 128398432. In scientific notation, it is written as 1.28398431 × 10^8. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 72545088 positive integers (up to 128398431) that are relatively prime to 128398431.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million three hundred ninety-eight thousand four hundred thirty-one

Notation

Scientific notation 1.28398431 × 10^8
Engineering notation 1.28398431 × 10^6

Prime Factorization of 128398431

Prime Factorization 267 × 7 × 68699

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 128398431
Product of the distinct prime numbers

The prime factorization of 128398431 is 267 × 7 × 68699. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128398431)

Multiplication

n×y
n×2 256796862
n×3 385195293
n×4 513593724
n×5 641992155

Division

n÷y
n÷2 64199215.5
n÷3 42799477
n÷3 32099607.75
n÷5 25679686.2

Exponentiation

ny
n2 16486157083261761
n3 2.1167967027103E+24
n4 2.7179337537398E+32
n5 3.4897842954213E+40

Nth Root

y√n
2√n 11331.303146594
3√n 504.49078625573
4√n 106.44859391553
5√n 41.851588194462

Divisors of 128398431

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 -128398430
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 128398431 can be divided by 8 positive divisors. The sum of these divisors (counting 128398431) is 1, the average is 0.125.

Base conversion 128398431

Base System Value
2 Binary 111101001110011010001011111
3 Ternary 22221121022112110
4 Quaternary 13221303101133
5 Quinary 230332222211
6 Senary 20424005103
8 Octal 751632137
10 Decimal 128398431
12 Duodecimal 37000793
16 Hexadecimal 7a7345f
20 Vigesimal 2029g1b
36 Base36 24g0v3

Cryptographic Hash Functions

md5 38a1ba41634c8ea8c10b89435055afc5
sha1 8c0afdde0e5ab82beb5fc95b558e7ff374ed0884
sha256 800fa7e4d8a594e2b6b1c8eb4728e3b1668ea4d95b4ea72aa749817311a45256
sha512 fafd30f62851f66b58d900b0b5a25871bbc662c0eae5aa3cfdf4d22de88c459b0b582ab0a009a3945e40f175b876845003762cc8250c87e4f979bf870c5daded
ripemd-160 36fe8cc37bacdb6b227d5e257eab397eebb46391

128398431 as geometric shapes

Circle

Radius = n
Diameter 256796862
Circumference 806751135.12411
Area 5.1792789978702E+16

Sphere

Radius = n
Volume 8.8668172938372E+24
Surface area 2.0717115991481E+17
Circumference 806751135.12411

Square

Length = n
Perimeter 513593724
Area 16486157083261761
Diagonal 181582802.50763

Cube

Length = n
Surface area 98916942499570566
Volume 2.1167967027103E+24
Space diagonal 222392606.10413

Equilateral Triangle

Length = n
Perimeter 385195293
Area 7.1387154224427E+15
Altitude 111196303.05206

Triangular Pyramid

Length = n
Surface area 7.1387154224427E+15
Volume 2.494668838133E+23
Height 60527600.835875