129121381 (number)

129121381 is an odd 9-digits composite number following 129121380 and preceding 129121382. In scientific notation, it is written as 1.29121381 × 10^8. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 127302700 positive integers (up to 129121381) that are relatively prime to 129121381.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.29121381 × 10^8
Engineering notation 1.29121381 × 10^6

Prime Factorization of 129121381

Prime Factorization 71 × 1818611

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 129121381
Product of the distinct prime numbers

The prime factorization of 129121381 is 71 × 1818611. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 5, 93, 69, 136, 428, 119, 403, 32233, 17380, 15989, 315645, 8898294, 3353687, 54537233, 8918067, 786194193, 123922302, 1348350312, 7120596508

Basic calculations (n = 129121381)

Multiplication

n×y
n×2 258242762
n×3 387364143
n×4 516485524
n×5 645606905

Division

n÷y
n÷2 64560690.5
n÷3 43040460.333333
n÷3 32280345.25
n÷5 25824276.2

Exponentiation

ny
n2 16672331031347161
n3 2.1527544072567E+24
n4 2.7796662201882E+32
n5 3.5891434106975E+40

Nth Root

y√n
2√n 11363.158935789
3√n 505.43586328444
4√n 106.59811881918
5√n 41.898611651965

Divisors of 129121381

1, 71, 1818611, 129121381

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 -129121380
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 129121381 can be divided by 4 positive divisors. The sum of these divisors (counting 129121381) is 1, the average is 0.25.

Base conversion 129121381

Base System Value
2 Binary 111101100100011110001100101
3 Ternary 22222222001020101
4 Quaternary 13230203301211
5 Quinary 231023341011
6 Senary 20451304101
8 Octal 754436145
10 Decimal 129121381
12 Duodecimal 372ab031
16 Hexadecimal 7b23c65
20 Vigesimal 2070391
36 Base36 24vip1

Cryptographic Hash Functions

md5 3cd02b9d7b1386e0cc690b846f0be3a3
sha1 2b2b741460734ac9b7f1269292741cd108fe248a
sha256 81de224733426bdae1e63d491cade8150f6e7c5a346525f3bc6c9f2f8ada7fbe
sha512 bfa9dc5a9bb75d9489f6570472e26e6f56b20ec7b428e876d48deb0f23151c40fbb436af24ed7fd054926d9ca9f9a15a390927af5c4ea60f45a06d76c7767987
ripemd-160 314deaf6d89d821bb89f7149711217b8dc55b299

129121381 as geometric shapes

Circle

Radius = n
Diameter 258242762
Circumference 811293563.94194
Area 5.2377672686297E+16

Sphere

Radius = n
Volume 9.0174365744276E+24
Surface area 2.0951069074519E+17
Circumference 811293563.94194

Square

Length = n
Perimeter 516485524
Area 16672331031347161
Diagonal 182605208.20254

Cube

Length = n
Surface area 100033986188082966
Volume 2.1527544072567E+24
Space diagonal 223644792.23546

Equilateral Triangle

Length = n
Perimeter 387364143
Area 7.2193311067251E+15
Altitude 111822396.11773

Triangular Pyramid

Length = n
Surface area 7.2193311067251E+15
Volume 2.5370453993341E+23
Height 60868402.734181