129123491 (number)

129123491 is an odd 9-digits composite number following 129123490 and preceding 129123492. In scientific notation, it is written as 1.29123491 × 10^8. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 110677272 positive integers (up to 129123491) that are relatively prime to 129123491.

Interesting facts

Basic properties

Name

Name one hundred twenty-nine million one hundred twenty-three thousand four hundred ninety-one

Notation

Scientific notation 1.29123491 × 10^8
Engineering notation 1.29123491 × 10^6

Prime Factorization of 129123491

Prime Factorization 7 × 18446213

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 129123491
Product of the distinct prime numbers

The prime factorization of 129123491 is 7 × 18446213. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 4, 84, 37, 348, 948, 7424, 685, 3906, 2950, 965496, 753829, 9612266, 1436439, 48205743, 57440712, 705452411, 137847025, 4399198528, 3872084745

Basic calculations (n = 129123491)

Multiplication

n×y
n×2 258246982
n×3 387370473
n×4 516493964
n×5 645617455

Division

n÷y
n÷2 64561745.5
n÷3 43041163.666667
n÷3 32280872.75
n÷5 25824698.2

Exponentiation

ny
n2 16672875928027081
n3 2.1528599448367E+24
n4 2.7798479171138E+32
n5 3.5894366750682E+40

Nth Root

y√n
2√n 11363.25177931
3√n 505.43861641449
4√n 106.59855430216
5√n 41.898748585898

Divisors of 129123491

1, 7, 18446213, 129123491

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 -129123490
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 129123491 can be divided by 4 positive divisors. The sum of these divisors (counting 129123491) is 1, the average is 0.25.

Base conversion 129123491

Base System Value
2 Binary 111101100100100010010100011
3 Ternary 22222222011010112
4 Quaternary 13230210102203
5 Quinary 231023422431
6 Senary 20451321535
8 Octal 754442243
10 Decimal 129123491
12 Duodecimal 372b02ab
16 Hexadecimal 7b244a3
20 Vigesimal 20708eb
36 Base36 24vkbn

Cryptographic Hash Functions

md5 41a850eb822444484c7dcfb28dac0ea8
sha1 5e5a570cdc9fdc02d0f176aadad3cc178552cae2
sha256 3618ee165debac77cc1c468d668ab1d67466f1f3720a7c0231b2e495671877af
sha512 4affdaeeb687c5e6747a0f16cf458e49d9b3b69fd23676fc391324239fab35308f1bf2aba3a0eaa98838be49dff28ec33262dd29c3ca69b5d003f14494418e03
ripemd-160 0340f40672b69381e14211aa685e53af4ac20fa8

129123491 as geometric shapes

Circle

Radius = n
Diameter 258246982
Circumference 811306821.46294
Area 5.2379384529704E+16

Sphere

Radius = n
Volume 9.017878649209E+24
Surface area 2.0951753811882E+17
Circumference 811306821.46294

Square

Length = n
Perimeter 516493964
Area 16672875928027081
Diagonal 182608192.19316

Cube

Length = n
Surface area 100037255568162486
Volume 2.1528599448367E+24
Space diagonal 223648446.86266

Equilateral Triangle

Length = n
Perimeter 387370473
Area 7.2195670539087E+15
Altitude 111824223.43133

Triangular Pyramid

Length = n
Surface area 7.2195670539087E+15
Volume 2.5371697765649E+23
Height 60869397.39772