129249905 is an odd 9-digits composite number following 129249904
and preceding 129249906 . In scientific notation, it is written as 1.29249905 × 10^8.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 103399920 positive integers (up to 129249905) that are relatively prime to 129249905.
129249905 has 4 divisors, whose sum is 155099892
The reverse of 129249905 is 509942921
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 41
Digital Root 5
Name
one hundred twenty-nine million two hundred forty-nine thousand nine hundred five
Scientific notation
1.29249905 × 10^8
Engineering notation
1.29249905 × 10^6
Prime Factorization
5 × 25849981
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129249905
Product of the distinct prime numbers
The prime factorization of 129249905 is 5 × 25849981.
Since it has a total of 2 prime factors.
5 , 1 , 59 , 38 , 4 , 29 , 5003 , 3360 , 62376 , 84474 , 516156 , 845891 , 6273238 , 2208826 , 25114783 , 48023186 , 901934718 , 675116932 , 6607405974 , 5330734056
n×2
258499810
n×3
387749715
n×4
516999620
n×5
646249525
n÷2
64624952.5
n÷3
43083301.666667
n÷3
32312476.25
n÷5
25849981
n2
16705537942509025
n3
2.1591891920432E+24
n4
2.7907499794861E+32
n5
3.6070416972733E+40
2 √n
11368.812822806
3 √n
505.60350682763
4 √n
106.62463515908
5 √n
41.906949286486
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
-129249904
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 129249905 can be divided by 4 positive divisors.
The sum of these divisors (counting 129249905) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101101000011001001110001
3
Ternary
100000012120112112
4
Quaternary
13231003021301
5
Quinary
231041444110
6
Senary
20454135105
8
Octal
755031161
10
Decimal
129249905
12
Duodecimal
37351495
16
Hexadecimal
7b43271
20
Vigesimal
207g4f5
36
Base36
24y9v5
md5
d0df6023214ed06bd77e1e1fbd25b717
sha1
0353dfbf4dc6a96ad3a9be24134e3439bf2cc974
sha256
568b3620711891d5ee4111e0bcd1f2d81dafcdef2ea29fb3fecd5887bab26ffd
sha512
76c50ee3e75b9ab6db728a21e5fa77360f7eae90c7b38993fa3e93bbe810565ec9cb13f221fce0cbcffd5e33fc8d2af5b9d21551d704aa6d07df978a348189df
ripemd-160
8022ca96bd51676c53880ef6f3cdf3dc4b5eb3ee
Diameter
258499810
Circumference
812101104.05036
Area
5.2481995274452E+16
Volume
9.0443905379111E+24
Surface area
2.0992798109781E+17
Circumference
812101104.05036
Perimeter
516999620
Area
16705537942509025
Diagonal
182786968.58643
Surface area
100233227655054150
Volume
2.1591891920432E+24
Space diagonal
223867402.33345
Perimeter
387749715
Area
7.2337101210488E+15
Altitude
111933701.16673
Surface area
7.2337101210488E+15
Volume
2.5446288659307E+23
Height
60928989.528811