129248905 is an odd 9-digits composite number following 129248904
and preceding 129248906 . In scientific notation, it is written as 1.29248905 × 10^8.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 103399120 positive integers (up to 129248905) that are relatively prime to 129248905.
129248905 has 4 divisors, whose sum is 155098692
The reverse of 129248905 is 509842921
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 40
Digital Root 4
Name
one hundred twenty-nine million two hundred forty-eight thousand nine hundred five
Scientific notation
1.29248905 × 10^8
Engineering notation
1.29248905 × 10^6
Prime Factorization
5 × 25849781
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129248905
Product of the distinct prime numbers
The prime factorization of 129248905 is 5 × 25849781.
Since it has a total of 2 prime factors.
6 , 8 , 98 , 15 , 119 , 356 , 4430 , 6589 , 33718 , 33736 , 735315 , 181202 , 6348762 , 1835349 , 55098471 , 7557141 , 406993878 , 426260386 , 4204635161 , 9766620565
n×2
258497810
n×3
387746715
n×4
516995620
n×5
646244525
n÷2
64624452.5
n÷3
43082968.333333
n÷3
32312226.25
n÷5
25849781
n2
16705279443699025
n3
2.1591390758171E+24
n4
2.7906636129207E+32
n5
3.6069021619335E+40
2 √n
11368.768842755
3 √n
505.60220288131
4 √n
106.62442892112
5 √n
41.906884439895
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-129248904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129248905 can be divided by 4 positive divisors.
The sum of these divisors (counting 129248905) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101101000010111010001001
3
Ternary
100000012112011111
4
Quaternary
13231002322021
5
Quinary
231041431110
6
Senary
20454130321
8
Octal
755027211
10
Decimal
129248905
12
Duodecimal
373509a1
16
Hexadecimal
7b42e89
20
Vigesimal
207g255
36
Base36
24y93d
md5
a8a80711db9074c3c6a70ca52dc195f5
sha1
dd7415cddf8861da5b1bf7c5a26adc8494ce660e
sha256
fe3307ad42f400a48d71320552e6e60f48b336a5b35d91a9e8ad95f151e73567
sha512
7ea9915581b5aac931ab50aa258d51067965083f16878fb48e4045c2327769d11ef259a563a5b61b0177e051bf3f399956a272e9dd5b9018a76e3ebeb72003f7
ripemd-160
92b5cef6540393acc76f8e59d6cb73be5727302f
Diameter
258497810
Circumference
812094820.86505
Area
5.2481183176489E+16
Volume
9.0441806115542E+24
Surface area
2.0992473270596E+17
Circumference
812094820.86505
Perimeter
516995620
Area
16705279443699025
Diagonal
182785554.37287
Surface area
100231676662194150
Volume
2.1591390758171E+24
Space diagonal
223865670.28264
Perimeter
387746715
Area
7.2335981877807E+15
Altitude
111932835.14132
Surface area
7.2335981877807E+15
Volume
2.5445698033919E+23
Height
60928518.124291