128542938 (number)

128542938 is an even 9-digits composite number following 128542937 and preceding 128542939. In scientific notation, it is written as 1.28542938 × 10^8. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 42847644 positive integers (up to 128542938) that are relatively prime to 128542938.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million five hundred forty-two thousand nine hundred thirty-eight

Notation

Scientific notation 1.28542938 × 10^8
Engineering notation 1.28542938 × 10^6

Prime Factorization of 128542938

Prime Factorization 2 × 3 × 21423823

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 128542938
Product of the distinct prime numbers

The prime factorization of 128542938 is 2 × 3 × 21423823. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128542938)

Multiplication

n×y
n×2 257085876
n×3 385628814
n×4 514171752
n×5 642714690

Division

n÷y
n÷2 64271469
n÷3 42847646
n÷3 32135734.5
n÷5 25708587.6

Exponentiation

ny
n2 16523286909671844
n3 2.1239518447862E+24
n4 2.7301901029933E+32
n5 3.5094665713729E+40

Nth Root

y√n
2√n 11337.677804559
3√n 504.67997630795
4√n 106.47853213
5√n 41.861004394654

Divisors of 128542938

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 -128542937
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 128542938 can be divided by 8 positive divisors. The sum of these divisors (counting 128542938) is 1, the average is 0.125.

Base conversion 128542938

Base System Value
2 Binary 111101010010110100011011010
3 Ternary 22221212122202120
4 Quaternary 13222112203122
5 Quinary 230401333223
6 Senary 20431042110
8 Octal 752264332
10 Decimal 128542938
12 Duodecimal 37070336
16 Hexadecimal 7a968da
20 Vigesimal 2037h6i
36 Base36 24j4d6

Cryptographic Hash Functions

md5 2feaeb1a6ff6b68615c4a6dbc997a30e
sha1 8ffdb376099f491e0343190f56c1f8ea46acfc19
sha256 833a5a6c80eab3a5fc5a738c3c78177bf8e9e6bcc061643b3c3ae48d6f0a2a74
sha512 4e3d42093437c3d1fd8e8f866c9e1830ffde1f0b6c9766961973e40d0712a60888897f5f58f499144df88c5690683cc71fce0c65e969ea40e714197410e843fc
ripemd-160 cfd8aad6b0f43f18d4aebd37f40b4ad7860d591c

128542938 as geometric shapes

Circle

Radius = n
Diameter 257085876
Circumference 807659099.3833
Area 5.1909436768581E+16

Sphere

Radius = n
Volume 8.8967886828782E+24
Surface area 2.0763774707433E+17
Circumference 807659099.3833

Square

Length = n
Perimeter 514171752
Area 16523286909671844
Diagonal 181787166.26688

Cube

Length = n
Surface area 99139721458031064
Volume 2.1239518447862E+24
Space diagonal 222642899.57018

Equilateral Triangle

Length = n
Perimeter 385628814
Area 7.1547931088973E+15
Altitude 111321449.78509

Triangular Pyramid

Length = n
Surface area 7.1547931088973E+15
Volume 2.5031012539366E+23
Height 60595722.088961