129131421 is an odd 9-digits composite number following 129131420
and preceding 129131422 . In scientific notation, it is written as 1.29131421 × 10^8.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 86061120 positive integers (up to 129131421) that are relatively prime to 129131421.
129131421 has 8 divisors, whose sum is 172228224
The reverse of 129131421 is 124131921
Previous prime number is 5711
Is Prime? no Number parity odd Number length 9 Sum of Digits 24 Digital Root 6
Name
one hundred twenty-nine million one hundred thirty-one thousand four hundred twenty-one
Scientific notation
1.29131421 × 10^8
Engineering notation
1.29131421 × 10^6
Prime Factorization
3 × 5711 × 7537
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
129131421 Product of the distinct prime numbers
The prime factorization of 129131421 is 3 × 5711 × 7537.
Since it has a total of 3 prime factors.
2 , 7 , 17 , 69 , 294 , 930 , 5616 , 1846 , 44427 , 53906 , 174759 , 571688 , 8573673 , 8355178 , 14574062 , 96574158 , 969892990 , 375192596 , 4815787405 , 8502775881
n×2
258262842
n×3
387394263
n×4
516525684
n×5
645657105
n÷2
64565710.5
n÷3
43043807
n÷3
32282855.25
n÷5
25826284.2
n2
16674923889479241
n3
2.1532566169153E+24
n4
2.7805308671993E+32
n5
3.590539020158E+40
2 √n11363.600705762
3 √n505.44896321802
4 √n106.60019092742
5 √n41.89926320785
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
-129131420 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 129131421 can be divided by 8 positive divisors.
The sum of these divisors (counting 129131421) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101100100110001110011101
3
Ternary
22222222120000020
4
Quaternary
13230212032131
5
Quinary
231024201141
6
Senary
20451422353
8
Octal
754461635
10
Decimal
129131421
12
Duodecimal
372b49b9
16
Hexadecimal
7b2639d
20
Vigesimal
20718b1
36
Base36
24vqfx
md5
bebc4d61fd48b8abda5f5dd39469f203
sha1
aaafc3e713642bebb17f4a167233271426519a8e
sha256
c753dcdc0da6fec29adf116a28972ac5680734a74ce911a84b1f6081e5b8370b
sha512
cda47b6c94fb9fb3c49b4e8a56dddf6bb7161ef4c2c483d6950c54c15c9fed4a54b7d7880a6324c6bd52a903f462aa4a08fcf766953eaaf230a9189823e6572c
ripemd-160
d14487b40cf83f912818d1172c114ca1f17c3916
Diameter
258262842
Circumference
811356647.12242
Area
5.2385818390357E+16
Volume
9.0195402253263E+24
Surface area
2.0954327356143E+17
Circumference
811356647.12242
Perimeter
516525684
Area
16674923889479241
Diagonal
182619406.90671
Surface area
100049543336875446
Volume
2.1532566169153E+24
Space diagonal
223662182.02557
Perimeter
387394263
Area
7.2204538472305E+15
Altitude
111831091.01278
Surface area
7.2204538472305E+15
Volume
2.5376372590927E+23
Height
60873135.63557