129121389 is an odd 9-digits composite number following 129121388
and preceding 129121390 . In scientific notation, it is written as 1.29121389 × 10^8.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 84078792 positive integers (up to 129121389) that are relatively prime to 129121389.
129121389 has 8 divisors, whose sum is 146805120
The reverse of 129121389 is 983121921
Previous prime number is 43
Is Prime? no Number parity odd Number length 9 Sum of Digits 36 Digital Root 9
Name
one hundred twenty-nine million one hundred twenty-one thousand three hundred eighty-nine
Scientific notation
1.29121389 × 10^8
Engineering notation
1.29121389 × 10^6
Prime Factorization
9 × 43 × 333647
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
129121389 Product of the distinct prime numbers
The prime factorization of 129121389 is 9 × 43 × 333647.
Since it has a total of 3 prime factors.
2 , 5 , 76 , 18 , 109 , 878 , 320 , 3294 , 72060 , 68473 , 728497 , 818392 , 7468503 , 9702927 , 16809974 , 23783121 , 225643349 , 272336595 , 248395349 , 1157487471
n×2
258242778
n×3
387364167
n×4
516485556
n×5
645606945
n÷2
64560694.5
n÷3
43040463
n÷3
32280347.25
n÷5
25824277.8
n2
16672333097289321
n3
2.1527548073927E+24
n4
2.7796669090697E+32
n5
3.5891445225641E+40
2 √n11363.159287804
3 √n505.4358737229
4 √n106.59812047031
5 √n41.898612171149
8 divisors
τ Total Divisors
8 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-129121388 Sum of the proper positive divisors of n
A Arithmetic Mean
0.125 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
8 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129121389 can be divided by 8 positive divisors.
The sum of these divisors (counting 129121389) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101100100011110001101101
3
Ternary
22222222001020200
4
Quaternary
13230203301231
5
Quinary
231023341024
6
Senary
20451304113
8
Octal
754436155
10
Decimal
129121389
12
Duodecimal
372ab039
16
Hexadecimal
7b23c6d
20
Vigesimal
2070399
36
Base36
24vip9
md5
7d9400daa179902a934682cdb4e6e010
sha1
c5c4ca28f03228842a362ff59b9eaaa3c68b9f65
sha256
0a798cdba3c5114a87f31fb9b100b4507d73e6bee0379120e4967b729b272f68
sha512
5b1b3fefadbd10d27ffc66355f862977807bb09544c8d7fff148a4003a86b313b13f4d7420d3e18f3e44f4b94d89d098bf950ea2aee25b670fd005fed05747fb
ripemd-160
d7c7211953fd27481f90e46a704aef49599b84aa
Diameter
258242778
Circumference
811293614.20742
Area
5.2377679176646E+16
Volume
9.0174382505132E+24
Surface area
2.0951071670658E+17
Circumference
811293614.20742
Perimeter
516485556
Area
16672333097289321
Diagonal
182605219.51625
Surface area
100033998583735926
Volume
2.1527548073927E+24
Space diagonal
223644806.09187
Perimeter
387364167
Area
7.2193320013043E+15
Altitude
111822403.04593
Surface area
7.2193320013043E+15
Volume
2.5370458708988E+23
Height
60868406.505417