129021328 is an even 9-digits composite number following 129021327
and preceding 129021329 . In scientific notation, it is written as 1.29021328 × 10^8.
The sum of its digits is 28. It has a total of 6 prime factors and 20 positive divisors.
There are 63010080 positive integers (up to 129021328) that are relatively prime to 129021328.
129021328 has 20 divisors, whose sum is 255793648
The reverse of 129021328 is 823120921
Previous prime number is 43
Is Prime? no
Number parity even
Number length 9
Sum of Digits 28
Digital Root 1
Name
one hundred twenty-nine million twenty-one thousand three hundred twenty-eight
Scientific notation
1.29021328 × 10^8
Engineering notation
1.29021328 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 43 × 187531
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
16127666
Product of the distinct prime numbers
The prime factorization of 129021328 is 2 × 2 × 2 × 2 × 43 × 187531.
Since it has a total of 6 prime factors.
1 , 7 , 9 , 56 , 608 , 178 , 949 , 5838 , 1566 , 68898 , 969539 , 433311 , 9034036 , 67237 , 58454422 , 24493769 , 36972437 , 916386333 , 991911471 , 7541109255
n×2
258042656
n×3
387063984
n×4
516085312
n×5
645106640
n÷2
64510664
n÷3
43007109.333333
n÷3
32255332
n÷5
25804265.6
n2
16646503078883584
n3
2.1477539337936E+24
n4
2.7710606475528E+32
n5
3.575259247158E+40
2 √n
11358.755565642
3 √n
505.3052795872
4 √n
106.57746274725
5 √n
41.89211639657
1 , 2 , 4 , 8 , 16 , 43 , 86 , 172 , 344 , 688 , 187531 , 375062 , 750124 , 1500248 , 3000496 , 8063833 , 16127666 , 32255332 , 64510664 , 129021328
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-129021327
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129021328 can be divided by 20 positive divisors.
The sum of these divisors (counting 129021328) is 1, the average is 0.05.
Base
System
Value
2
Binary
111101100001011010110010000
3
Ternary
22222202221222201
4
Quaternary
13230023112100
5
Quinary
231012140303
6
Senary
20445212544
8
Octal
754132620
10
Decimal
129021328
12
Duodecimal
37261154
16
Hexadecimal
7b0b590
20
Vigesimal
2067d68
36
Base36
24tdhs
md5
f89ca919dc605d28a8d22b19225e9ee3
sha1
e55ab00856424794c3393178bac27defe5d7fd56
sha256
d5b37fd85cde9c38d058e0daba6d3c481c67e88fb153fa103b9f5567dc63cf11
sha512
781fe715ff8671d7bb41f08637d50d6331a54665c4a1fd9ec1124d7c0beb61131e06b547a69eefc3c0bfa0a8c8989e43409a9622d91ed7a27d999e144c54efba
ripemd-160
da11474654bf35f603718cd218366f02791d7a0f
Diameter
258042656
Circumference
810664912.4024
Area
5.2296531780581E+16
Volume
8.9964906401663E+24
Surface area
2.0918612712232E+17
Circumference
810664912.4024
Perimeter
516085312
Area
16646503078883584
Diagonal
182463711.89299
Surface area
99879018473301504
Volume
2.1477539337936E+24
Space diagonal
223471495.35601
Perimeter
387063984
Area
7.2081472752445E+15
Altitude
111735747.678
Surface area
7.2081472752445E+15
Volume
2.5311522848426E+23
Height
60821237.297663