129207845 is an odd 9-digits composite number following 129207844
and preceding 129207846 . In scientific notation, it is written as 1.29207845 × 10^8.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 92335680 positive integers (up to 129207845) that are relatively prime to 129207845.
129207845 has 16 divisors, whose sum is 172365312
The reverse of 129207845 is 548702921
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 two hundred seven thousand eight hundred forty-five
Scientific notation
1.29207845 × 10^8
Engineering notation
1.29207845 × 10^6
Prime Factorization
13 × 5 × 31 × 64123
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
129207845
Product of the distinct prime numbers
The prime factorization of 129207845 is 13 × 5 × 31 × 64123.
Since it has a total of 4 prime factors.
4 , 1 , 17 , 26 , 524 , 149 , 3883 , 7536 , 24099 , 38335 , 199786 , 285588 , 7439096 , 8174887 , 24040990 , 63980620 , 286580555 , 628613159 , 980244545 , 3657969807
n×2
258415690
n×3
387623535
n×4
516831380
n×5
646039225
n÷2
64603922.5
n÷3
43069281.666667
n÷3
32301961.25
n÷5
25841569
n2
16694667209544025
n3
2.1570819731373E+24
n4
2.7871191323742E+32
n5
3.6011765685235E+40
2 √n
11366.962874928
3 √n
505.5486570371
4 √n
106.6159597571
5 √n
41.904221492197
1 , 5 , 13 , 31 , 65 , 155 , 403 , 2015 , 64123 , 320615 , 833599 , 1987813 , 4167995 , 9939065 , 25841569 , 129207845
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-129207844
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129207845 can be divided by 16 positive divisors.
The sum of these divisors (counting 129207845) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101100111000111000100101
3
Ternary
100000010102211202
4
Quaternary
13230320320211
5
Quinary
231034122340
6
Senary
20453212245
8
Octal
754707045
10
Decimal
129207845
12
Duodecimal
37331085
16
Hexadecimal
7b38e25
20
Vigesimal
207ajc5
36
Base36
24xdet
md5
6c8455c98a232da1e44f53c5a001c7bc
sha1
cfe356e4ac43b71a00e3238e698df38ff1df7694
sha256
a7a93d49f8bd37330d8b975296948bec39d7ce0928c40adbc4f5a6207251db61
sha512
bd012390f1a25cc533f2c0d050cfcb09602566babcc11a7bff68e461f1d9626d103b627bf019f99f0bcaad45683eba63ff75914446c35c1b4143e631f0c84efa
ripemd-160
bf07a37965e7b416f75dc5fee4812cc0f2d6baf3
Diameter
258415690
Circumference
811836833.27634
Area
5.244784385963E+16
Volume
9.035563839999E+24
Surface area
2.0979137543852E+17
Circumference
811836833.27634
Perimeter
516831380
Area
16694667209544025
Diagonal
182727486.764
Surface area
100168003257264150
Volume
2.1570819731373E+24
Space diagonal
223794552.27648
Perimeter
387623535
Area
7.2290029555961E+15
Altitude
111897276.13824
Surface area
7.2290029555961E+15
Volume
2.5421454846345E+23
Height
60909162.254667