129845 is an odd 6-digits composite number following 129844
and preceding 129846 . In scientific notation, it is written as 1.29845 × 10^5.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 103872 positive integers (up to 129845) that are relatively prime to 129845.
129845 has 4 divisors, whose sum is 155820
The reverse of 129845 is 548921
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 29
Digital Root 2
Name
one hundred twenty-nine thousand eight hundred forty-five
Scientific notation
1.29845 × 10^5
Engineering notation
1.29845 × 10^3
Prime Factorization
5 × 25969
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129845
Product of the distinct prime numbers
The prime factorization of 129845 is 5 × 25969.
Since it has a total of 2 prime factors.
3 , 3 , 42 , 22 , 224 , 287 , 7935 , 6300 , 66185 , 5877 , 274086 , 559295 , 8479457 , 3687018 , 59112833 , 72077037 , 140723873 , 765585314 , 4947846187 , 8785970282
n×2
259690
n×3
389535
n×4
519380
n×5
649225
n÷2
64922.5
n÷3
43281.666666667
n÷3
32461.25
n÷5
25969
n2
16859724025
n3
2189150866026125
n4
2.8425029419916E+20
n5
3.690847945029E+25
2 √n
360.3401171116
3 √n
50.637828888165
4 √n
18.982626717912
5 √n
10.536225237172
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
-129844
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 129845 can be divided by 4 positive divisors.
The sum of these divisors (counting 129845) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111101100110101
3
Ternary
20121010002
4
Quaternary
133230311
5
Quinary
13123340
6
Senary
2441045
8
Octal
375465
10
Decimal
129845
12
Duodecimal
63185
16
Hexadecimal
1fb35
20
Vigesimal
g4c5
36
Base36
2s6t
md5
d521a075b964e28fc42add0041f71424
sha1
0ebc2b346afe762b0f1b7deb0916df67512b2d08
sha256
d79b47e4ae7b709b207b593e2c691fc52784d42df83fce3319b546a96e475715
sha512
96ce56bfb6ccbb647787e7a87fcee2b55ca9c997e4e0fc5777f5ded6a4861f9dea07bc15bf7fa4dbd7f269bd48d7ceeb796c71e5026233f6b62bf5887e46e09e
ripemd-160
8719563d6463144492df3c3be6acc78e27d08eb1
Diameter
259690
Circumference
815840.19621073
Area
52966385138.491
Volume
9.1698937044099E+15
Surface area
211865540553.97
Circumference
815840.19621073
Perimeter
519380
Area
16859724025
Diagonal
183628.56000633
Surface area
101158344150
Volume
2189150866026125
Space diagonal
224898.13710878
Perimeter
389535
Area
7300474653.2224
Altitude
112449.06855439
Surface area
7300474653.2224
Volume
2.5799390373458E+14
Height
61209.520002112