129804905 is an odd 9-digits composite number following 129804904
and preceding 129804906 . In scientific notation, it is written as 1.29804905 × 10^8.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 100494000 positive integers (up to 129804905) that are relatively prime to 129804905.
129804905 has 8 divisors, whose sum is 160790784
The reverse of 129804905 is 509408921
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred twenty-nine million eight hundred four thousand nine hundred five
Scientific notation
1.29804905 × 10^8
Engineering notation
1.29804905 × 10^6
Prime Factorization
5 × 31 × 837451
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
129804905
Product of the distinct prime numbers
The prime factorization of 129804905 is 5 × 31 × 837451.
Since it has a total of 3 prime factors.
1 , 10 , 74 , 95 , 419 , 314 , 2032 , 819 , 49577 , 17230 , 448419 , 603945 , 6818217 , 1433030 , 7281567 , 87379658 , 667144591 , 107649486 , 6752266768 , 6288366303
n×2
259609810
n×3
389414715
n×4
519219620
n×5
649024525
n÷2
64902452.5
n÷3
43268301.666667
n÷3
32451226.25
n÷5
25960981
n2
16849313362059025
n3
2.1871235202773E+24
n4
2.8389936077286E+32
n5
3.6851529554682E+40
2 √n
11393.195556998
3 √n
506.32616178736
4 √n
106.73891304018
5 √n
41.942877376105
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
-129804904
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 129804905 can be divided by 8 positive divisors.
The sum of these divisors (counting 129804905) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101111001010101001101001
3
Ternary
100001020202212002
4
Quaternary
13233022221221
5
Quinary
231212224110
6
Senary
20514100345
8
Octal
757125151
10
Decimal
129804905
12
Duodecimal
3757a6b5
16
Hexadecimal
7bcaa69
20
Vigesimal
20b5c55
36
Base36
25a63t
md5
cec30ef1733f0e5696a5075f85b4d59e
sha1
81eb0f66636575dd5df030b875052fa5c2187c1b
sha256
b9eb44bf9d6d889143076e088e01c89b4c2d27e50cc66346d724c29f049cbb0b
sha512
e9bb2bc791c0d906c613d8131a574b6d1ddfbcae123419cc2a7632d63c90fb50a2e95b08cb18d93a77e671edab078417c374a9c017881576dad88d9f2e1eab11
ripemd-160
7340fca6dc2000a543266a7af2b7c33da162af51
Diameter
259609810
Circumference
815588271.89584
Area
5.2933679076277E+16
Volume
9.1614015783955E+24
Surface area
2.1173471630511E+17
Circumference
815588271.89584
Perimeter
519219620
Area
16849313362059025
Diagonal
183571857.11355
Surface area
101095880172354150
Volume
2.1871235202773E+24
Space diagonal
224828690.53165
Perimeter
389414715
Area
7.2959667039339E+15
Altitude
112414345.26583
Surface area
7.2959667039339E+15
Volume
2.5775497874678E+23
Height
61190619.03785