129609985 is an odd 9-digits composite number following 129609984
and preceding 129609986 . In scientific notation, it is written as 1.29609985 × 10^8.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 103687984 positive integers (up to 129609985) that are relatively prime to 129609985.
129609985 has 4 divisors, whose sum is 155531988
The reverse of 129609985 is 589906921
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 49
Digital Root 4
Name
one hundred twenty-nine million six hundred nine thousand nine hundred eighty-five
Scientific notation
1.29609985 × 10^8
Engineering notation
1.29609985 × 10^6
Prime Factorization
5 × 25921997
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129609985
Product of the distinct prime numbers
The prime factorization of 129609985 is 5 × 25921997.
Since it has a total of 2 prime factors.
5 , 3 , 97 , 38 , 354 , 331 , 7911 , 2360 , 42161 , 56236 , 597313 , 143748 , 8491321 , 9848127 , 45508552 , 29369911 , 669490016 , 481042422 , 1000451845 , 6416761097
n×2
259219970
n×3
388829955
n×4
518439940
n×5
648049925
n÷2
64804992.5
n÷3
43203328.333333
n÷3
32402496.25
n÷5
25921997
n2
16798748211700225
n3
2.1772855037372E+24
n4
2.821979414801E+32
n5
3.6575670962267E+40
2 √n
11384.638114582
3 √n
506.07259525958
4 √n
106.69881964943
5 √n
41.930273197938
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
-129609984
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 129609985 can be divided by 4 positive divisors.
The sum of these divisors (counting 129609985) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101110011011000100000001
3
Ternary
100000212212110211
4
Quaternary
13232123010001
5
Quinary
231140004420
6
Senary
20505554121
8
Octal
756330401
10
Decimal
129609985
12
Duodecimal
374a5941
16
Hexadecimal
7b9b101
20
Vigesimal
20a14j5
36
Base36
255zpd
md5
6d44710dc99ef81052984d08dc5b04f8
sha1
1d8f566685d2fc6bc0afc95c41f14075566fa2cc
sha256
5de5524f98ae89dabb7dd88670b287e21bb84a550cee5021b2d1875baf630faa
sha512
ae1e841415278781de2eaff51c53c65041354cb2fd45c9a4f99400edae3ff8debe649dc291a923ce2fee5a8a26518bb2cf781b99cb6e496c9c63441ce630b963
ripemd-160
46ea9db722c19ddcc7c923ec04ec36fc35dc6c6e
Diameter
259219970
Circumference
814363553.41577
Area
5.2774823971382E+16
Volume
9.120192191078E+24
Surface area
2.1109929588553E+17
Circumference
814363553.41577
Perimeter
518439940
Area
16798748211700225
Diagonal
183296198.60597
Surface area
100792489270201350
Volume
2.1772855037372E+24
Space diagonal
224491079.18824
Perimeter
388829955
Area
7.2740713515554E+15
Altitude
112245539.59412
Surface area
7.2740713515554E+15
Volume
2.5659555737863E+23
Height
61098732.868658