128439457 (number)

128439457 is an odd 9-digits composite number following 128439456 and preceding 128439458. In scientific notation, it is written as 1.28439457 × 10^8. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 128283696 positive integers (up to 128439457) that are relatively prime to 128439457.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million four hundred thirty-nine thousand four hundred fifty-seven

Notation

Scientific notation 1.28439457 × 10^8
Engineering notation 1.28439457 × 10^6

Prime Factorization of 128439457

Prime Factorization 829 × 154933

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 128439457
Product of the distinct prime numbers

The prime factorization of 128439457 is 829 × 154933. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128439457)

Multiplication

n×y
n×2 256878914
n×3 385318371
n×4 513757828
n×5 642197285

Division

n÷y
n÷2 64219728.5
n÷3 42813152.333333
n÷3 32109864.25
n÷5 25687891.4

Exponentiation

ny
n2 16496694114454849
n3 2.1188264343557E+24
n4 2.7214091670589E+32
n5 3.4953631569187E+40

Nth Root

y√n
2√n 11333.113296884
3√n 504.54451234056
4√n 106.45709603819
5√n 41.854262345288

Divisors of 128439457

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128439456
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128439457 can be divided by 4 positive divisors. The sum of these divisors (counting 128439457) is 1, the average is 0.25.

Base conversion 128439457

Base System Value
2 Binary 111101001111101010010100001
3 Ternary 22221200101210221
4 Quaternary 13221331102201
5 Quinary 230340030312
6 Senary 20424523041
8 Octal 751752241
10 Decimal 128439457
12 Duodecimal 37020481
16 Hexadecimal 7a7d4a1
20 Vigesimal 202eich
36 Base36 24gwip

Cryptographic Hash Functions

md5 e434fef9b4192b6cf9feb42540231a73
sha1 279442658af81238760b8316d669c77eb89e8889
sha256 2726edd9d1dd72a1d6a99042a25f32a425b041a14e15efb06a77fea86820fe1d
sha512 fdceaacdb35c2496c99f0ca7bea669123f0cedaa3d57b976f9c334f3338b5b67caeecefe9d05e1bb8216812a30619ae2c53464e23e7e622601c8e13c2b79caa9
ripemd-160 fb68fe70ec4fd14711c419999bda67e62ce9ddf6

128439457 as geometric shapes

Circle

Radius = n
Diameter 256878914
Circumference 807008909.08452
Area 5.1825893038489E+16

Sphere

Radius = n
Volume 8.8753194138715E+24
Surface area 2.0730357215396E+17
Circumference 807008909.08452

Square

Length = n
Perimeter 513757828
Area 16496694114454849
Diagonal 181640822.03324

Cube

Length = n
Surface area 98980164686729094
Volume 2.1188264343557E+24
Space diagonal 222463665.22056

Equilateral Triangle

Length = n
Perimeter 385318371
Area 7.1432780907896E+15
Altitude 111231832.61028

Triangular Pyramid

Length = n
Surface area 7.1432780907896E+15
Volume 2.497060899817E+23
Height 60546940.677745