128512420 (number)

128512420 is an even 9-digits composite number following 128512419 and preceding 128512421. In scientific notation, it is written as 1.28512420 × 10^8. The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors. There are 51404960 positive integers (up to 128512420) that are relatively prime to 128512420.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.28512420 × 10^8
Engineering notation 1.28512420 × 10^6

Prime Factorization of 128512420

Prime Factorization 2 × 2 × 5 × 6425621

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 64256210
Product of the distinct prime numbers

The prime factorization of 128512420 is 2 × 2 × 5 × 6425621. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 7, 90, 19, 870, 531, 2804, 3963, 2514, 19486, 869568, 381534, 1391287, 2687484, 333025, 3572322, 689448481, 370680395, 8361043810, 148523613

Basic calculations (n = 128512420)

Multiplication

n×y
n×2 257024840
n×3 385537260
n×4 514049680
n×5 642562100

Division

n÷y
n÷2 64256210
n÷3 42837473.333333
n÷3 32128105
n÷5 25702484

Exponentiation

ny
n2 16515442094256400
n3 2.1224394309028E+24
n4 2.7275982756874E+32
n5 3.5053025519641E+40

Nth Root

y√n
2√n 11336.331858234
3√n 504.6400336429
4√n 106.47221167156
5√n 41.859016521202

Divisors of 128512420

1, 2, 4, 5, 10, 20, 6425621, 12851242, 25702484, 32128105, 64256210, 128512420

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128512419
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128512420 can be divided by 12 positive divisors. The sum of these divisors (counting 128512420) is 1, the average is 0.083333333333333.

Base conversion 128512420

Base System Value
2 Binary 111101010001111000110100100
3 Ternary 22221211002220021
4 Quaternary 13222033012210
5 Quinary 230344344140
6 Senary 20430244524
8 Octal 752170644
10 Decimal 128512420
12 Duodecimal 37056744
16 Hexadecimal 7a8f1a4
20 Vigesimal 2034110
36 Base36 24igtg

Cryptographic Hash Functions

md5 ad0ad27276e337057f3096db0a55614e
sha1 62264baffa49256f015df8c5c2dc040759afbd35
sha256 8560078069c2edce396eb7e89eebdf199acacc779cf61bf2e8e3dbb2b444396c
sha512 ffb4d646bb8456cb1d26c874f2effa9caf16b929ee9225798179c6ad7788ab0317393f39127b1bf879e5d136733f8e2cef6fd062426e9c9f3d7f448eadc5c491
ripemd-160 b6750bf38f6004620bbbe16bac181262ba75c5f7

128512420 as geometric shapes

Circle

Radius = n
Diameter 257024840
Circumference 807467349.13409
Area 5.1884791554104E+16

Sphere

Radius = n
Volume 8.8904534984179E+24
Surface area 2.0753916621641E+17
Circumference 807467349.13409

Square

Length = n
Perimeter 514049680
Area 16515442094256400
Diagonal 181744007.29739

Cube

Length = n
Surface area 99092652565538400
Volume 2.1224394309028E+24
Space diagonal 222590040.84363

Equilateral Triangle

Length = n
Perimeter 385537260
Area 7.1513962041785E+15
Altitude 111295020.42182

Triangular Pyramid

Length = n
Surface area 7.1513962041785E+15
Volume 2.5013188570818E+23
Height 60581335.765796