129920909 is an odd 9-digits composite number following 129920908
and preceding 129920910 . In scientific notation, it is written as 1.29920909 × 10^8.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 129261216 positive integers (up to 129920909) that are relatively prime to 129920909.
129920909 has 4 divisors, whose sum is 130580604
The reverse of 129920909 is 909029921
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 41
Digital Root 5
Name
one hundred twenty-nine million nine hundred twenty thousand nine hundred nine
Scientific notation
1.29920909 × 10^8
Engineering notation
1.29920909 × 10^6
Prime Factorization
197 × 659497
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129920909
Product of the distinct prime numbers
The prime factorization of 129920909 is 197 × 659497.
Since it has a total of 2 prime factors.
1 , 5 , 10 , 79 , 593 , 729 , 1935 , 166 , 40566 , 7611 , 118913 , 938361 , 3578154 , 2793938 , 75709066 , 46659412 , 885409505 , 444775678 , 8560597810 , 2215601058
n×2
259841818
n×3
389762727
n×4
519683636
n×5
649604545
n÷2
64960454.5
n÷3
43306969.666667
n÷3
32480227.25
n÷5
25984181.8
n2
16879442595386281
n3
2.1929925254059E+24
n4
2.8491558233094E+32
n5
3.70164914447E+40
2 √n
11398.285353508
3 √n
506.47694800442
4 √n
106.76275265048
5 √n
41.950371396743
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
-129920908
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 129920909 can be divided by 4 positive divisors.
The sum of these divisors (counting 129920909) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101111100110111110001101
3
Ternary
100001110122222112
4
Quaternary
13233212332031
5
Quinary
231224432114
6
Senary
20520353405
8
Octal
757467615
10
Decimal
129920909
12
Duodecimal
37615865
16
Hexadecimal
7be6f8d
20
Vigesimal
20c0259
36
Base36
25cnm5
md5
56eb22e7a883869dd6a5a84744a02d78
sha1
d669976bb921db55a457db0be3986cb2840e08d9
sha256
8a36d21057d18589bd8b4d0612c1596a15c0c22fb5f698d37a53eeefe201c691
sha512
65624e6cff5e6cae91ccb82c9781f2f932f00549575df4d282f045713195da75fea5ba6f0bcd82b700081da2955151464b5d4c4557c8443179e6b1f920ac2128
ripemd-160
9e85c4e204c9c50a58d14fa4d5c4d489f9990e04
Diameter
259841818
Circumference
816317146.52422
Area
5.3028332854356E+16
Volume
9.18598560959E+24
Surface area
2.1211333141742E+17
Circumference
816317146.52422
Perimeter
519683636
Area
16879442595386281
Diagonal
183735911.54364
Surface area
101276655572317686
Volume
2.1929925254059E+24
Space diagonal
225029615.35353
Perimeter
389762727
Area
7.3090130446628E+15
Altitude
112514807.67677
Surface area
7.3090130446628E+15
Volume
2.5844664763432E+23
Height
61245303.84788