81506795 is an odd 8-digits composite number following 81506794
and preceding 81506796 . In scientific notation, it is written as 8.1506795 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 64866816 positive integers (up to 81506795) that are relatively prime to 81506795.
81506795 has 8 divisors, whose sum is 98316096
The reverse of 81506795 is 59760518
Previous prime number is 193
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-one million five hundred six thousand seven hundred ninety-five
Scientific notation
8.1506795 × 10^7
Engineering notation
8.1506795 × 10^6
Prime Factorization
5 × 193 × 84463
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81506795
Product of the distinct prime numbers
The prime factorization of 81506795 is 5 × 193 × 84463.
Since it has a total of 3 prime factors.
3 , 5 , 95 , 55 , 17 , 644 , 6428 , 2175 , 85511 , 3440 , 826459 , 97926 , 5364595 , 6055147 , 56332571 , 84127413 , 664587371 , 943260675 , 6739366085 , 9921351200
n×2
163013590
n×3
244520385
n×4
326027180
n×5
407533975
n÷2
40753397.5
n÷3
27168931.666667
n÷3
20376698.75
n÷5
16301359
n2
6643357631172025
n3
5.4147878855562E+23
n4
4.4134200615652E+31
n5
3.5972372420688E+39
2 √n
9028.111375033
3 √n
433.57537201601
4 √n
95.016374246932
5 √n
38.215431109627
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
-81506794
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 81506795 can be divided by 8 positive divisors.
The sum of these divisors (counting 81506795) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110111011000111101011
3
Ternary
12200100222022012
4
Quaternary
10312323013223
5
Quinary
131331204140
6
Senary
12030550135
8
Octal
466730753
10
Decimal
81506795
12
Duodecimal
2336834b
16
Hexadecimal
4dbb1eb
20
Vigesimal
15986jf
36
Base36
1ciz1n
md5
b26a15c838eebf366287baa35aa5428c
sha1
6d96f0b12ed36dad7a396dbfae1733ee83206837
sha256
5fab6fdd08c06d46ed21a395dc17aab608862ebae364c3e9d46bad71dfe0da4b
sha512
47afc686eb8f0379c10fc0efbbcc8949e1b81d72859c1574f38c06e5f5bd21f812c5f7fef2dbe80c0546cb63fdb0e1849b5abe5aa5ad5d2a93ef92726597856f
ripemd-160
aeed1f01f4a0b6d2e4058943d1349f4d135b75d4
Diameter
163013590
Circumference
512122296.7793
Area
2.087072352926E+16
Volume
2.2681410456014E+24
Surface area
8.3482894117039E+16
Circumference
512122296.7793
Perimeter
326027180
Area
6643357631172025
Diagonal
115268014.91456
Surface area
39860145787032150
Volume
5.4147878855562E+23
Space diagonal
141173910.1021
Perimeter
244520385
Area
2.8766582375101E+15
Altitude
70586955.05105
Surface area
2.8766582375101E+15
Volume
6.3813887209393E+22
Height
38422671.638188