129128828 is an even 9-digits composite number following 129128827
and preceding 129128829 . In scientific notation, it is written as 1.29128828 × 10^8.
The sum of its digits is 41. It has a total of 4 prime factors and 12 positive divisors.
There are 63062832 positive integers (up to 129128828) that are relatively prime to 129128828.
129128828 has 12 divisors, whose sum is 231231000
The reverse of 129128828 is 828821921
Previous prime number is 43
Is Prime? no Number parity even Number length 9 Sum of Digits 41 Digital Root 5
Name
one hundred twenty-nine million one hundred twenty-eight thousand eight hundred twenty-eight
Scientific notation
1.29128828 × 10^8
Engineering notation
1.29128828 × 10^6
Prime Factorization
2 × 2 × 43 × 750749
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
64564414 Product of the distinct prime numbers
The prime factorization of 129128828 is 2 × 2 × 43 × 750749.
Since it has a total of 4 prime factors.
1 , 4 , 100 , 72 , 103 , 54 , 837 , 3369 , 24459 , 44156 , 181219 , 956634 , 7868680 , 3147203 , 36896487 , 19411324 , 787593001 , 212755401 , 5946210662 , 2437963229
n×2
258257656
n×3
387386484
n×4
516515312
n×5
645644140
n÷2
64564414
n÷3
43042942.666667
n÷3
32282207
n÷5
25825765.6
n2
16674254220653584
n3
2.1531269052871E+24
n4
2.7803075381498E+32
n5
3.5901785388085E+40
2 √n11363.486612831
3 √n505.4455800034
4 √n106.59965578196
5 √n41.899094936392
1 , 2 , 4 , 43 , 86 , 172 , 750749 , 1501498 , 3002996 , 32282207 , 64564414 , 129128828
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-129128827 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129128828 can be divided by 12 positive divisors.
The sum of these divisors (counting 129128828) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111101100100101100101111100
3
Ternary
22222222102110012
4
Quaternary
13230211211330
5
Quinary
231024110303
6
Senary
20451402352
8
Octal
754454574
10
Decimal
129128828
12
Duodecimal
372b33b8
16
Hexadecimal
7b2597c
20
Vigesimal
2071218
36
Base36
24vofw
md5
ec0d1037b79e91b5f28d0193f8f11646
sha1
6b04bafe69efdb622869f972ff39b741f56895d6
sha256
973bad489e3e05638f15d116b141c1c3c7d362be93867ec9307d6303dd981d9d
sha512
73fcb3c265dd602f38e3f09a7578e5e062493093e35205fd573dc87d1452e1f651a9121e1348c11629ed6feb4a556da792e5d4363e0b3b184c1d2cea1c8347c7
ripemd-160
e3d311f5c7e1ff59ad0edfe6daf5dcda28ce4d08
Diameter
258257656
Circumference
811340354.82292
Area
5.2383714563694E+16
Volume
9.0189968905284E+24
Surface area
2.0953485825478E+17
Circumference
811340354.82292
Perimeter
516515312
Area
16674254220653584
Diagonal
182615739.85094
Surface area
100045525323921504
Volume
2.1531269052871E+24
Space diagonal
223657690.81782
Perimeter
387386484
Area
7.220163872123E+15
Altitude
111828845.40891
Surface area
7.220163872123E+15
Volume
2.5374843924728E+23
Height
60871913.283648