131029905 is an odd 9-digits composite number following 131029904
and preceding 131029906 . In scientific notation, it is written as 1.31029905 × 10^8.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 69203328 positive integers (up to 131029905) that are relatively prime to 131029905.
131029905 has 16 divisors, whose sum is 211685760
The reverse of 131029905 is 509920131
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 30
Digital Root 3
Name
one hundred thirty-one million twenty-nine thousand nine hundred five
Scientific notation
1.31029905 × 10^8
Engineering notation
1.31029905 × 10^6
Prime Factorization
3 × 5 × 103 × 84809
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
131029905
Product of the distinct prime numbers
The prime factorization of 131029905 is 3 × 5 × 103 × 84809.
Since it has a total of 4 prime factors.
3 , 5 , 80 , 62 , 86 , 62 , 126 , 2866 , 64331 , 87269 , 239189 , 507355 , 6949861 , 8371926 , 84122041 , 959369 , 537036016 , 140020968 , 2949111018 , 9039401335
n×2
262059810
n×3
393089715
n×4
524119620
n×5
655149525
n÷2
65514952.5
n÷3
43676635
n÷3
32757476.25
n÷5
26205981
n2
17168836004309025
n3
2.2496309506052E+24
n4
2.9476892974286E+32
n5
3.8623544861158E+40
2 √n
11446.829473701
3 √n
507.91395121151
4 √n
106.98985687298
5 √n
42.021745214843
1 , 3 , 5 , 15 , 103 , 309 , 515 , 1545 , 84809 , 254427 , 424045 , 1272135 , 8735327 , 26205981 , 43676635 , 131029905
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
-131029904
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 131029905 can be divided by 16 positive divisors.
The sum of these divisors (counting 131029905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111110011110101101110010001
3
Ternary
100010120000020110
4
Quaternary
13303311232101
5
Quinary
232020424110
6
Senary
21000231533
8
Octal
763655621
10
Decimal
131029905
12
Duodecimal
37a6b5a9
16
Hexadecimal
7cf5b91
20
Vigesimal
20iief5
36
Base36
260fbl
md5
d150ea7115f43c46c174ee6b6b9822f6
sha1
3b37b7d7654e22dc88dd962f1d0839f61c54539b
sha256
d585f4871e4c87ffd4d1d50f8bff18ab4f8fe51e0aabf0c4bc3e3bf29f720504
sha512
84c09d9a9a17bf4587c6e0ff3e6bb5f6bcf68d11fee2769a800e6aee775f583b392ec078d3f34af337fbd07b6e1a0094f6232b834532a76974db1a759b414a7d
ripemd-160
1b283ab8b814189df728db0be0a15331eec7e6a8
Diameter
262059810
Circumference
823285173.89714
Area
5.3937489061825E+16
Volume
9.4232320902793E+24
Surface area
2.157499562473E+17
Circumference
823285173.89714
Perimeter
524119620
Area
17168836004309025
Diagonal
185304268.72746
Surface area
103013016025854150
Volume
2.2496309506052E+24
Space diagonal
226950452.77092
Perimeter
393089715
Area
7.4343240665703E+15
Altitude
113475226.38546
Surface area
7.4343240665703E+15
Volume
2.6512155005668E+23
Height
61768089.575819