128520642 (number)

128520642 is an even 9-digits composite number following 128520641 and preceding 128520643. In scientific notation, it is written as 1.28520642 × 10^8. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 40977552 positive integers (up to 128520642) that are relatively prime to 128520642.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million five hundred twenty thousand six hundred forty-two

Notation

Scientific notation 1.28520642 × 10^8
Engineering notation 1.28520642 × 10^6

Prime Factorization of 128520642

Prime Factorization 2 × 69 × 931309

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 128520642
Product of the distinct prime numbers

The prime factorization of 128520642 is 2 × 69 × 931309. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 1, 72, 20, 421, 401, 9243, 9475, 15749, 28541, 448400, 812199, 8045219, 6586289, 69999623, 11055250, 339290312, 227896242, 2979478901, 2898689513

Basic calculations (n = 128520642)

Multiplication

n×y
n×2 257041284
n×3 385561926
n×4 514082568
n×5 642603210

Division

n÷y
n÷2 64260321
n÷3 42840214
n÷3 32130160.5
n÷5 25704128.4

Exponentiation

ny
n2 16517555420092164
n3 2.1228468268608E+24
n4 2.7282963705582E+32
n5 3.506424011104E+40

Nth Root

y√n
2√n 11336.694491782
3√n 504.65079540915
4√n 106.4739146072
5√n 41.859552120838

Divisors of 128520642

1, 2, 69, 138, 931309, 1862618, 64260321, 128520642

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 -128520641
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 128520642 can be divided by 8 positive divisors. The sum of these divisors (counting 128520642) is 1, the average is 0.125.

Base conversion 128520642

Base System Value
2 Binary 111101010010001000111000010
3 Ternary 22221211112011210
4 Quaternary 13222101013002
5 Quinary 230400130032
6 Senary 20430350550
8 Octal 752210702
10 Decimal 128520642
12 Duodecimal 3705b456
16 Hexadecimal 7a911c2
20 Vigesimal 20351c2
36 Base36 24in5u

Cryptographic Hash Functions

md5 b3584afbbd14aa723c4364b9647dc856
sha1 33fb465f9ab5d52d882cc47a12176cb28d1b3c2c
sha256 40565077ad9d39f29367c987ea0bda3f0e748d9f25b0794d550ff21d109e5a76
sha512 d61fa1c2e3c047a0caf05c04e7b9ed3193e3ea7d3057490bd62ca274b8d75122d43ced7103ec1394504ef9eec4e686fef5e0d9a9a52614c37d7985df86416305
ripemd-160 4de5793c0be7b3cc7b306bfbf6c695afbe17f470

128520642 as geometric shapes

Circle

Radius = n
Diameter 257041284
Circumference 807519009.48369
Area 5.1891430763024E+16

Sphere

Radius = n
Volume 8.8921599946165E+24
Surface area 2.075657230521E+17
Circumference 807519009.48369

Square

Length = n
Perimeter 514082568
Area 16517555420092164
Diagonal 181755634.9613

Cube

Length = n
Surface area 99105332520552984
Volume 2.1228468268608E+24
Space diagonal 222604281.76537

Equilateral Triangle

Length = n
Perimeter 385561926
Area 7.1523113011086E+15
Altitude 111302140.88269

Triangular Pyramid

Length = n
Surface area 7.1523113011086E+15
Volume 2.5017989778227E+23
Height 60585211.653766