129550985 is an odd 9-digits composite number following 129550984
and preceding 129550986 . In scientific notation, it is written as 1.29550985 × 10^8.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 103640784 positive integers (up to 129550985) that are relatively prime to 129550985.
129550985 has 4 divisors, whose sum is 155461188
The reverse of 129550985 is 589055921
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 44
Digital Root 8
Name
one hundred twenty-nine million five hundred fifty thousand nine hundred eighty-five
Scientific notation
1.29550985 × 10^8
Engineering notation
1.29550985 × 10^6
Prime Factorization
5 × 25910197
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129550985
Product of the distinct prime numbers
The prime factorization of 129550985 is 5 × 25910197.
Since it has a total of 2 prime factors.
6 , 9 , 79 , 5 , 763 , 857 , 2878 , 7923 , 38447 , 86446 , 840251 , 44165 , 7381599 , 997209 , 5258427 , 38612820 , 357877304 , 74601943 , 1543467338 , 1524497410
n×2
259101970
n×3
388652955
n×4
518203940
n×5
647754925
n÷2
64775492.5
n÷3
43183661.666667
n÷3
32387746.25
n÷5
25910197
n2
16783457714470225
n3
2.1743134786155E+24
n4
2.8168445285341E+32
n5
3.6492498326345E+40
2 √n
11382.046608585
3 √n
505.99579352531
4 √n
106.68667493452
5 √n
41.926455071274
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
-129550984
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 129550985 can be divided by 4 positive divisors.
The sum of these divisors (counting 129550985) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101110001100101010001001
3
Ternary
100000202212112122
4
Quaternary
13232030222021
5
Quinary
231131112420
6
Senary
20504421025
8
Octal
756145211
10
Decimal
129550985
12
Duodecimal
37477775
16
Hexadecimal
7b8ca89
20
Vigesimal
209dh95
36
Base36
254q6h
md5
3df3a14240d99df9f91f5074d7e99bb0
sha1
75281335fc3a663ffd5ee5f3c171bd2746da1b23
sha256
69105a921d517d99a911823492226d2b548c563f3581be82efd3dd5260cddf6d
sha512
225d1d1b5c6f5dcfc751b1264bc78550bb58f8d851f5b18603e00cb143cca29cdec9441f4d5f6176f9dc4d6cbbbafb4430393d9fcbe00add07bdaf77111c6b74
ripemd-160
11551e9da8ce759ceefbee3291698eeeec878e20
Diameter
259101970
Circumference
813992845.48264
Area
5.2726787457615E+16
Volume
9.1077430013595E+24
Surface area
2.1090714983046E+17
Circumference
813992845.48264
Perimeter
518203940
Area
16783457714470225
Diagonal
183212760.00579
Surface area
100700746286821350
Volume
2.1743134786155E+24
Space diagonal
224388888.19059
Perimeter
388652955
Area
7.2674503720366E+15
Altitude
112194444.0953
Surface area
7.2674503720366E+15
Volume
2.5624530085905E+23
Height
61070920.001931