129838 (number)

129838 is an even 6-digits composite number following 129837 and preceding 129839. In scientific notation, it is written as 1.29838 × 10^5. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 64918 positive integers (up to 129838) that are relatively prime to 129838.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.29838 × 10^5
Engineering notation 1.29838 × 10^3

Prime Factorization of 129838

Prime Factorization 2 × 64919

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 129838
Product of the distinct prime numbers

The prime factorization of 129838 is 2 × 64919. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 129838)

Multiplication

n×y
n×2 259676
n×3 389514
n×4 519352
n×5 649190

Division

n÷y
n÷2 64919
n÷3 43279.333333333
n÷3 32459.5
n÷5 25967.6

Exponentiation

ny
n2 16857906244
n3 2188796830908472
n4 2.8418900293149E+20
n5 3.6898531762619E+25

Nth Root

y√n
2√n 360.33040393506
3√n 50.636918902741
4√n 18.98237087234
5√n 10.536111632232

Divisors of 129838

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 -129837
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 129838 can be divided by 4 positive divisors. The sum of these divisors (counting 129838) is 1, the average is 0.25.

Base conversion 129838

Base System Value
2 Binary 11111101100101110
3 Ternary 20121002211
4 Quaternary 133230232
5 Quinary 13123323
6 Senary 2441034
8 Octal 375456
10 Decimal 129838
12 Duodecimal 6317a
16 Hexadecimal 1fb2e
20 Vigesimal g4bi
36 Base36 2s6m

Cryptographic Hash Functions

md5 a4053fa0355375b421bb90b69b4a920e
sha1 4c1b2b116cbde22fbb6dd794a3064c40abac4541
sha256 c3a70477d8fc59678e9f59fa79dfe4e7ecd5be3ae52050482eee47ddb2be4e33
sha512 e7a6a6589d0923c5b93440cd7db126277b3145b6c4788b2b0fb91370536e8656ff27642d8330e61855a94ab0c94404eddf1f00976009336fb43969e8d0251fb3
ripemd-160 4da83e8db751014ac9a372d525b19f5a299ee4c2

129838 as geometric shapes

Circle

Radius = n
Diameter 259676
Circumference 815796.21391358
Area 52960674411.056

Sphere

Radius = n
Volume 9.1684107255769E+15
Surface area 211842697644.22
Circumference 815796.21391358

Square

Length = n
Perimeter 519352
Area 16857906244
Diagonal 183618.6605114

Cube

Length = n
Surface area 101147437464
Volume 2188796830908472
Space diagonal 224886.01275313

Equilateral Triangle

Length = n
Perimeter 389514
Area 7299687530.9602
Altitude 112443.00637656

Triangular Pyramid

Length = n
Surface area 7299687530.9602
Volume 2.5795218029583E+14
Height 61206.220170466