129968686 is an even 9-digits composite number following 129968685
and preceding 129968687 . In scientific notation, it is written as 1.29968686 × 10^8.
The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors.
There are 64984342 positive integers (up to 129968686) that are relatively prime to 129968686.
129968686 has 4 divisors, whose sum is 194953032
The reverse of 129968686 is 686869921
Previous prime number is 2
Is Prime? no
Number parity even
Number length 9
Sum of Digits 55
Digital Root 1
Name
one hundred twenty-nine million nine hundred sixty-eight thousand six hundred eighty-six
Scientific notation
1.29968686 × 10^8
Engineering notation
1.29968686 × 10^6
Prime Factorization
2 × 64984343
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129968686
Product of the distinct prime numbers
The prime factorization of 129968686 is 2 × 64984343.
Since it has a total of 2 prime factors.
1 , 4 , 26 , 70 , 541 , 824 , 6382 , 9332 , 22857 , 17040 , 605250 , 45909 , 7873330 , 7138282 , 28994724 , 9096124 , 388621946 , 882944990 , 9234464181 , 393608848
n×2
259937372
n×3
389906058
n×4
519874744
n×5
649843430
n÷2
64984343
n÷3
43322895.333333
n÷3
32492171.5
n÷5
25993737.2
n2
16891859340566596
n3
2.1954127625903E+24
n4
2.8533491198149E+32
n5
3.708460358016E+40
2 √n
11400.380958547
3 √n
506.53902419051
4 √n
106.77256650726
5 √n
41.953456301485
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
-129968685
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 129968686 can be divided by 4 positive divisors.
The sum of these divisors (counting 129968686) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101111110010101000101110
3
Ternary
100001120002112001
4
Quaternary
13233302220232
5
Quinary
231232444221
6
Senary
20521402514
8
Octal
757625056
10
Decimal
129968686
12
Duodecimal
3763943a
16
Hexadecimal
7bf2a2e
20
Vigesimal
20c61e6
36
Base36
25doha
md5
87ccc26b90f3d534ca07605f100972fe
sha1
083b6423e065b937ebac7c877ef2f3eaf8b053af
sha256
04e0b210fae1349b0adeacf47652a93f79ec3c471662bcd56a38dde98278bec9
sha512
f751e6a58645a33196f31c5b1e3d77b58595211b10f8119775116cf7b7a547899431abf83710b91bd2865c6b9bded61b8d53e7fe66958c4f7e42602c2740197b
ripemd-160
84b68805b6366b4985cfa01189494ae8c89f119e
Diameter
259937372
Circumference
816617338.26864
Area
5.3067341209796E+16
Volume
9.1961234754011E+24
Surface area
2.1226936483918E+17
Circumference
816617338.26864
Perimeter
519874744
Area
16891859340566596
Diagonal
183803478.42501
Surface area
101351156043399576
Volume
2.1954127625903E+24
Space diagonal
225112367.54497
Perimeter
389906058
Area
7.3143896530421E+15
Altitude
112556183.77248
Surface area
7.3143896530421E+15
Volume
2.5873187532184E+23
Height
61267826.14167