129123520 is an even 9-digits composite number following 129123519
and preceding 129123521 . In scientific notation, it is written as 1.29123520 × 10^8.
The sum of its digits is 25. It has a total of 8 prime factors and 28 positive divisors.
There are 51649280 positive integers (up to 129123520) that are relatively prime to 129123520.
129123520 has 28 divisors, whose sum is 307476144
The reverse of 129123520 is 025321921
Previous prime number is 5
Is Prime? no
Number parity even
Number length 9
Sum of Digits 25
Digital Root 7
Name
one hundred twenty-nine million one hundred twenty-three thousand five hundred twenty
Scientific notation
1.29123520 × 10^8
Engineering notation
1.29123520 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 5 × 403511
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
8
Total number of prime factors
rad
Radical
4035110
Product of the distinct prime numbers
The prime factorization of 129123520 is 2 × 2 × 2 × 2 × 2 × 2 × 5 × 403511.
Since it has a total of 8 prime factors.
7 , 6 , 19 , 72 , 927 , 461 , 1387 , 2334 , 60483 , 63757 , 704760 , 189844 , 4750336 , 3596907 , 29839494 , 25077936 , 60522139 , 973375803 , 231260923 , 890497999
n×2
258247040
n×3
387370560
n×4
516494080
n×5
645617600
n÷2
64561760
n÷3
43041173.333333
n÷3
32280880
n÷5
25824704
n2
16672883417190400
n3
2.1528613953773E+24
n4
2.7798504144322E+32
n5
3.5894407058495E+40
2 √n
11363.253055353
3 √n
505.43865425351
4 √n
106.59856028743
5 √n
41.898750467916
1 , 2 , 4 , 5 , 8 , 10 , 16 , 20 , 32 , 40 , 64 , 80 , 160 , 320 , 403511 , 807022 , 1614044 , 2017555 , 3228088 , 4035110 , 6456176 , 8070220 , 12912352 , 16140440 , 25824704 , 32280880 , 64561760 , 129123520
28 divisors
τ
Total Divisors
28
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-129123519
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.035714285714286
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
28
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129123520 can be divided by 28 positive divisors.
The sum of these divisors (counting 129123520) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
111101100100100010011000000
3
Ternary
22222222011011121
4
Quaternary
13230210103000
5
Quinary
231023423040
6
Senary
20451322024
8
Octal
754442300
10
Decimal
129123520
12
Duodecimal
372b0314
16
Hexadecimal
7b244c0
20
Vigesimal
20708g0
36
Base36
24vkcg
md5
5ef7f8f91e4060c54ed8e5e3590ff898
sha1
28fffc6f893fc10b8894bb58690a1f7f28a72cef
sha256
c83ecd4d3fcb39389cfa196f30586fafaf1fa257e5d82a8bc38c4af1d0c38cfc
sha512
28cf95eed6de3fc742022cfaeba46cd5c41602082489b92c9305fde0fb61bb23e9dd4f7226b9345a99aa8b226f90b4edaabe9472adaa9a06cdee56bc92d09872
ripemd-160
d439cf5f50b04e5f5b6768d0b18b24dd8a693561
Diameter
258247040
Circumference
811307003.67531
Area
5.2379408057604E+16
Volume
9.017884725219E+24
Surface area
2.0951763223042E+17
Circumference
811307003.67531
Perimeter
516494080
Area
16672883417190400
Diagonal
182608233.20535
Surface area
100037300503142400
Volume
2.1528613953773E+24
Space diagonal
223648497.09214
Perimeter
387370560
Area
7.2195702968116E+15
Altitude
111824248.54607
Surface area
7.2195702968116E+15
Volume
2.5371714860433E+23
Height
60869411.068451