129120421 is an odd 9-digits composite number following 129120420
and preceding 129120422 . In scientific notation, it is written as 1.29120421 × 10^8.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 126373132 positive integers (up to 129120421) that are relatively prime to 129120421.
129120421 has 4 divisors, whose sum is 131867712
The reverse of 129120421 is 124021921
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 22
Digital Root 4
Name
one hundred twenty-nine million one hundred twenty thousand four hundred twenty-one
Scientific notation
1.29120421 × 10^8
Engineering notation
1.29120421 × 10^6
Prime Factorization
47 × 2747243
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129120421
Product of the distinct prime numbers
The prime factorization of 129120421 is 47 × 2747243.
Since it has a total of 2 prime factors.
4 , 8 , 17 , 14 , 714 , 391 , 1182 , 6117 , 7656 , 46247 , 69262 , 368342 , 8355832 , 943271 , 76095893 , 54620711 , 142300273 , 621536669 , 5740450177 , 422658635
n×2
258240842
n×3
387361263
n×4
516481684
n×5
645602105
n÷2
64560210.5
n÷3
43040140.333333
n÷3
32280105.25
n÷5
25824084.2
n2
16672083119217241
n3
2.1527063913003E+24
n4
2.7795835553409E+32
n5
3.5890099887029E+40
2 √n
11363.116693936
3 √n
505.43461066558
4 √n
106.59792068298
5 √n
41.898549349678
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
-129120420
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 129120421 can be divided by 4 positive divisors.
The sum of these divisors (counting 129120421) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101100100011100010100101
3
Ternary
22222221222220211
4
Quaternary
13230203202211
5
Quinary
231023323141
6
Senary
20451255421
8
Octal
754434245
10
Decimal
129120421
12
Duodecimal
372aa571
16
Hexadecimal
7b238a5
20
Vigesimal
2070111
36
Base36
24vhyd
md5
a9bd9ec17739c506a83047c9dbb440d7
sha1
3ab6e1ecce676ae79ec215ef594801023af49752
sha256
aaab9bfb6e8d97de6b2e90b220cfd9cd0b6a96cb16741cc1daa6d9ed0eb57b0b
sha512
822eda7e6cfdbdc464ba6e27bbace095ac8dab67cafec77090b3d87f1d3b6ceda25209494ef30068145d38110202a94c0c4f8433f3328b68c6eeb0f443ef4fd1
ripemd-160
49dd1c754f887be668e3b45830ed7760d8d7f774
Diameter
258240842
Circumference
811287532.08404
Area
5.2376893847371E+16
Volume
9.0172354456599E+24
Surface area
2.0950757538949E+17
Circumference
811287532.08404
Perimeter
516481684
Area
16672083119217241
Diagonal
182603850.55752
Surface area
100032498715303446
Volume
2.1527063913003E+24
Space diagonal
223643129.46668
Perimeter
387361263
Area
7.2192237576239E+15
Altitude
111821564.73334
Surface area
7.2192237576239E+15
Volume
2.5369888119868E+23
Height
60867950.185841