129128438 (number)

129128438 is an even 9-digits composite number following 129128437 and preceding 129128439. In scientific notation, it is written as 1.29128438 × 10^8. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 64564218 positive integers (up to 129128438) that are relatively prime to 129128438.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.29128438 × 10^8
Engineering notation 1.29128438 × 10^6

Prime Factorization of 129128438

Prime Factorization 2 × 64564219

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 129128438
Product of the distinct prime numbers

The prime factorization of 129128438 is 2 × 64564219. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 6, 3, 75, 137, 609, 4881, 3542, 67871, 61218, 574737, 843849, 7782578, 1370442, 91560321, 81407002, 378671078, 679833277, 1213099107, 7527531172

Basic calculations (n = 129128438)

Multiplication

n×y
n×2 258256876
n×3 387385314
n×4 516513752
n×5 645642190

Division

n÷y
n÷2 64564219
n÷3 43042812.666667
n÷3 32282109.5
n÷5 25825687.6

Exponentiation

ny
n2 16674153500319844
n3 2.1531073964685E+24
n4 2.7802739495223E+32
n5 3.590124323139E+40

Nth Root

y√n
2√n 11363.469452592
3√n 505.4450711473
4√n 106.59957529274
5√n 41.8990696273

Divisors of 129128438

1, 2, 64564219, 129128438

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 -129128437
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 129128438 can be divided by 4 positive divisors. The sum of these divisors (counting 129128438) is 1, the average is 0.25.

Base conversion 129128438

Base System Value
2 Binary 111101100100101011111110110
3 Ternary 22222222101220202
4 Quaternary 13230211133312
5 Quinary 231024102223
6 Senary 20451400502
8 Octal 754453766
10 Decimal 129128438
12 Duodecimal 372b3132
16 Hexadecimal 7b257f6
20 Vigesimal 207111i
36 Base36 24vo52

Cryptographic Hash Functions

md5 0fcf25f94b29d001b973bee2737c1343
sha1 24b9c9234678ea7b81f4d8bbd9b9f30dea602341
sha256 d562c2bfddcf3b5f85b907c8f90d23e1cf5dbd9670b75880803d8cc1052d3a5e
sha512 4202a314042e2ebc7fb737ecc2c9de8ba64668cddb7d8b56e9ce554c8a8ca59d7d2515d89298f3f95455984936a4a683096021f9b17658864b975affba2c0392
ripemd-160 94947c591d51eb7861071e281dc6c49a03388e20

129128438 as geometric shapes

Circle

Radius = n
Diameter 258256876
Circumference 811337904.38065
Area 5.2383398141433E+16

Sphere

Radius = n
Volume 9.0189151721805E+24
Surface area 2.0953359256573E+17
Circumference 811337904.38065

Square

Length = n
Perimeter 516513752
Area 16674153500319844
Diagonal 182615188.30765

Cube

Length = n
Surface area 100044921001919064
Volume 2.1531073964685E+24
Space diagonal 223657015.31801

Equilateral Triangle

Length = n
Perimeter 387385314
Area 7.2201202589391E+15
Altitude 111828507.659

Triangular Pyramid

Length = n
Surface area 7.2201202589391E+15
Volume 2.5374614011097E+23
Height 60871729.435884