81129634 is an even 8-digits composite number following 81129633
and preceding 81129635 . In scientific notation, it is written as 8.1129634 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 39899760 positive integers (up to 81129634) that are relatively prime to 81129634.
81129634 has 8 divisors, whose sum is 123689628
The reverse of 81129634 is 43692118
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million one hundred twenty-nine thousand six hundred thirty-four
Scientific notation
8.1129634 × 10^7
Engineering notation
8.1129634 × 10^6
Prime Factorization
2 × 61 × 664997
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81129634
Product of the distinct prime numbers
The prime factorization of 81129634 is 2 × 61 × 664997.
Since it has a total of 3 prime factors.
7 , 1 , 98 , 94 , 557 , 226 , 4344 , 990 , 74547 , 51642 , 357058 , 24611 , 5326849 , 768937 , 45324561 , 29637263 , 897360041 , 75661021 , 708511197 , 7321815309
n×2
162259268
n×3
243388902
n×4
324518536
n×5
405648170
n÷2
40564817
n÷3
27043211.333333
n÷3
20282408.5
n÷5
16225926.8
n2
6582017512973956
n3
5.3399667180917E+23
n4
4.3322954541096E+31
n5
3.5147754457177E+39
2 √n
9007.1990096811
3 √n
432.90556853516
4 √n
94.906264333189
5 √n
38.179998179538
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81129633
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81129634 can be divided by 8 positive divisors.
The sum of these divisors (counting 81129634) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011111000010100010
3
Ternary
12122122210221021
4
Quaternary
10311133002202
5
Quinary
131232122014
6
Senary
12014520054
8
Octal
465370242
10
Decimal
81129634
12
Duodecimal
2320602a
16
Hexadecimal
4d5f0a2
20
Vigesimal
157141e
36
Base36
1caw0y
md5
ceffee90e6fdedf2175191ed3fc0f6cc
sha1
c0a628cc5aac8723b40d9e132c665a02ce22c771
sha256
2cc2eb233f2f193b30e20eada0520161471d8980c336a4d0b0cc2be0193a66a3
sha512
8ef60044c4a303f23d2ad9cc8644e9a6f6e33d79cb8709e5e3786f6627cb4470c824af91e688ee898ebb94125b0023e6a882ae86ba2cdd8146cb1bea4c7483b4
ripemd-160
cc6b9381b1b48b6b5c2d3790d1228bd675026f3d
Diameter
162259268
Circumference
509752524.32566
Area
2.0678017864558E+16
Volume
2.2368000282628E+24
Surface area
8.2712071458233E+16
Circumference
509752524.32566
Perimeter
324518536
Area
6582017512973956
Diagonal
114734628.71317
Surface area
39492105077843736
Volume
5.3399667180917E+23
Space diagonal
140520648.08747
Perimeter
243388902
Area
2.8500971871948E+15
Altitude
70260324.043734
Surface area
2.8500971871948E+15
Volume
6.2932111294552E+22
Height
38244876.237722