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.
129838 has 4 divisors, whose sum is 194760
The reverse of 129838 is 838921
Previous prime number is 2
Is Prime? no
Number parity even
Number length 6
Sum of Digits 31
Digital Root 4
Name
one hundred twenty-nine thousand eight hundred thirty-eight
Scientific notation
1.29838 × 10^5
Engineering notation
1.29838 × 10^3
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.
10 , 1 , 36 , 66 , 6 , 168 , 7720 , 8166 , 61585 , 80091 , 232397 , 964621 , 6000755 , 1431805 , 51597269 , 17881982 , 922305790 , 678300316 , 2663548616 , 2421432265
n×2
259676
n×3
389514
n×4
519352
n×5
649190
n÷2
64919
n÷3
43279.333333333
n÷3
32459.5
n÷5
25967.6
n2
16857906244
n3
2188796830908472
n4
2.8418900293149E+20
n5
3.6898531762619E+25
2 √n
360.33040393506
3 √n
50.636918902741
4 √n
18.98237087234
5 √n
10.536111632232
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
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
md5
a4053fa0355375b421bb90b69b4a920e
sha1
4c1b2b116cbde22fbb6dd794a3064c40abac4541
sha256
c3a70477d8fc59678e9f59fa79dfe4e7ecd5be3ae52050482eee47ddb2be4e33
sha512
e7a6a6589d0923c5b93440cd7db126277b3145b6c4788b2b0fb91370536e8656ff27642d8330e61855a94ab0c94404eddf1f00976009336fb43969e8d0251fb3
ripemd-160
4da83e8db751014ac9a372d525b19f5a299ee4c2
Diameter
259676
Circumference
815796.21391358
Area
52960674411.056
Volume
9.1684107255769E+15
Surface area
211842697644.22
Circumference
815796.21391358
Perimeter
519352
Area
16857906244
Diagonal
183618.6605114
Surface area
101147437464
Volume
2188796830908472
Space diagonal
224886.01275313
Perimeter
389514
Area
7299687530.9602
Altitude
112443.00637656
Surface area
7299687530.9602
Volume
2.5795218029583E+14
Height
61206.220170466