129040905 is an odd 9-digits composite number following 129040904
and preceding 129040906 . In scientific notation, it is written as 1.29040905 × 10^8.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 58990080 positive integers (up to 129040905) that are relatively prime to 129040905.
129040905 has 8 divisors, whose sum is 162222984
The reverse of 129040905 is 509040921
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 30
Digital Root 3
Name
one hundred twenty-nine million forty thousand nine hundred five
Scientific notation
1.29040905 × 10^8
Engineering notation
1.29040905 × 10^6
Prime Factorization
21 × 5 × 1228961
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
129040905
Product of the distinct prime numbers
The prime factorization of 129040905 is 21 × 5 × 1228961.
Since it has a total of 3 prime factors.
6 , 7 , 6 , 33 , 901 , 731 , 7610 , 700 , 41063 , 83849 , 976347 , 590683 , 1985069 , 7227561 , 86252859 , 58153281 , 239512361 , 57281046 , 1013858427 , 6201304579
n×2
258081810
n×3
387122715
n×4
516163620
n×5
645204525
n÷2
64520452.5
n÷3
43013635
n÷3
32260226.25
n÷5
25808181
n2
16651555163219025
n3
2.1487317479192E+24
n4
2.7727428935373E+32
n5
3.5779725231437E+40
2 √n
11359.617291089
3 √n
505.33083572668
4 √n
106.58150538948
5 √n
41.893387616149
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
-129040904
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 129040905 can be divided by 8 positive divisors.
The sum of these divisors (counting 129040905) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101100010000001000001001
3
Ternary
22222210221211210
4
Quaternary
13230100020021
5
Quinary
231013302110
6
Senary
20445443333
8
Octal
754201011
10
Decimal
129040905
12
Duodecimal
37270549
16
Hexadecimal
7b10209
20
Vigesimal
206a255
36
Base36
24tsll
md5
ff24482d04414410204954fc1fcc5a76
sha1
a7ae936cb0f339e7732c6f8e08fe862cce583a9d
sha256
467cebf5d2a1caea771f8eb7902a472e344193b48568d3bca7f7fd481667f141
sha512
840a6f1da0fab6f5a9e06c427fb7b0d7e6ac8705c37e5bfaeb24bfc9c56ca93365d0589eebb5409b291a99abcd8ed22f06b51293ca506c991ef54acb868b236a
ripemd-160
5293a2ab8e6615c30f49a7675bd309fd5dd3c094
Diameter
258081810
Circumference
810787918.32116
Area
5.2312403371614E+16
Volume
9.0005864983975E+24
Surface area
2.0924961348646E+17
Circumference
810787918.32116
Perimeter
516163620
Area
16651555163219025
Diagonal
182491397.9519
Surface area
99909330979314150
Volume
2.1487317479192E+24
Space diagonal
223505403.71467
Perimeter
387122715
Area
7.2103348919328E+15
Altitude
111752701.85733
Surface area
7.2103348919328E+15
Volume
2.5323046498408E+23
Height
60830465.983966