129121387 (number)

129121387 is an odd 9-digits composite number following 129121386 and preceding 129121388. In scientific notation, it is written as 1.29121387 × 10^8. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 129088296 positive integers (up to 129121387) that are relatively prime to 129121387.

Interesting facts

Basic properties

Name

Name one hundred twenty-nine million one hundred twenty-one thousand three hundred eighty-seven

Notation

Scientific notation 1.29121387 × 10^8
Engineering notation 1.29121387 × 10^6

Prime Factorization of 129121387

Prime Factorization 4519 × 28573

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 129121387
Product of the distinct prime numbers

The prime factorization of 129121387 is 4519 × 28573. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 3, 94, 60, 809, 642, 6598, 7298, 15438, 65789, 365610, 110910, 4935902, 3389344, 91994694, 69300753, 837989465, 726063361, 6609269912, 2907128299

Basic calculations (n = 129121387)

Multiplication

n×y
n×2 258242774
n×3 387364161
n×4 516485548
n×5 645606935

Division

n÷y
n÷2 64560693.5
n÷3 43040462.333333
n÷3 32280346.75
n÷5 25824277.4

Exponentiation

ny
n2 16672332580803769
n3 2.1527547073587E+24
n4 2.7796667368493E+32
n5 3.5891442445975E+40

Nth Root

y√n
2√n 11363.1591998
3√n 505.43587111328
4√n 106.59812005753
5√n 41.898612041353

Divisors of 129121387

1, 4519, 28573, 129121387

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 -129121386
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 129121387 can be divided by 4 positive divisors. The sum of these divisors (counting 129121387) is 1, the average is 0.25.

Base conversion 129121387

Base System Value
2 Binary 111101100100011110001101011
3 Ternary 22222222001020121
4 Quaternary 13230203301223
5 Quinary 231023341022
6 Senary 20451304111
8 Octal 754436153
10 Decimal 129121387
12 Duodecimal 372ab037
16 Hexadecimal 7b23c6b
20 Vigesimal 2070397
36 Base36 24vip7

Cryptographic Hash Functions

md5 28026ab161f533317576c28f80d1b612
sha1 5294b10d6a9d13d5e3833e03797272e8be1855ca
sha256 bc41831dea91f5c69d2e8ebe7a7249d546f94572eec0d6aa2d7f89314dd73287
sha512 e201a0cf3338bf326aa930d6db7f34041daa7a621f6d2fc1c4fd3ae5a5f7e11625ce97bbf5fc831dd7b7ccd3e84f68a6e6d245df8ec9f31ec0455ec22c7bc260
ripemd-160 50a69b36c33526c6f6561c968af70a26f0162e09

129121387 as geometric shapes

Circle

Radius = n
Diameter 258242774
Circumference 811293601.64105
Area 5.2377677554059E+16

Sphere

Radius = n
Volume 9.0174378314918E+24
Surface area 2.0951071021624E+17
Circumference 811293601.64105

Square

Length = n
Perimeter 516485548
Area 16672332580803769
Diagonal 182605216.68783

Cube

Length = n
Surface area 100033995484822614
Volume 2.1527547073587E+24
Space diagonal 223644802.62776

Equilateral Triangle

Length = n
Perimeter 387364161
Area 7.2193317776595E+15
Altitude 111822401.31388

Triangular Pyramid

Length = n
Surface area 7.2193317776595E+15
Volume 2.5370457530076E+23
Height 60868405.562608