81072586 is an even 8-digits composite number following 81072585
and preceding 81072587 . In scientific notation, it is written as 8.1072586 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 34745388 positive integers (up to 81072586) that are relatively prime to 81072586.
81072586 has 8 divisors, whose sum is 138981600
The reverse of 81072586 is 68527018
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-one million seventy-two thousand five hundred eighty-six
Scientific notation
8.1072586 × 10^7
Engineering notation
8.1072586 × 10^6
Prime Factorization
2 × 7 × 5790899
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81072586
Product of the distinct prime numbers
The prime factorization of 81072586 is 2 × 7 × 5790899.
Since it has a total of 3 prime factors.
10 , 2 , 45 , 69 , 546 , 811 , 5127 , 1315 , 22576 , 16881 , 379340 , 447324 , 8574210 , 3216724 , 45998139 , 99643945 , 721520829 , 973083687 , 1830667603 , 806253245
n×2
162145172
n×3
243217758
n×4
324290344
n×5
405362930
n÷2
40536293
n÷3
27024195.333333
n÷3
20268146.5
n÷5
16214517.2
n2
6572764200727396
n3
5.3287099092119E+23
n4
4.3201229238364E+31
n5
3.502435372733E+39
2 √n
9004.0316525432
3 √n
432.80407587248
4 √n
94.889576100556
5 √n
38.174627255707
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
-81072585
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 81072586 can be divided by 8 positive divisors.
The sum of these divisors (counting 81072586) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101010001000111001010
3
Ternary
12122112220200101
4
Quaternary
10311101013022
5
Quinary
131223310321
6
Senary
12013400014
8
Octal
465210712
10
Decimal
81072586
12
Duodecimal
2319900a
16
Hexadecimal
4d511ca
20
Vigesimal
156e196
36
Base36
1c9o0a
md5
808596dd2757265e874e7fcc01a65d31
sha1
20295fb05320f4a60280c1d383615514254ad2fb
sha256
4ecf1ac5c4b84fcdf35b4a70a4ffd0b1678968fd038dead241be73b10f0ed6f2
sha512
1d6e22b897ee8d7a6fcc7c5077b6778f8502e7b96566edbb776ff6be74151a0398e8b730611a5e34a32343527b37503eedc0ef2ae22f7500f12b2b59a3433171
ripemd-160
dacdb63eeffaf1c39d01db79ff630109340cb1d0
Diameter
162145172
Circumference
509394081.17025
Area
2.0648947726783E+16
Volume
2.2320847871855E+24
Surface area
8.2595790907133E+16
Circumference
509394081.17025
Perimeter
324290344
Area
6572764200727396
Diagonal
114653950.65786
Surface area
39436585204364376
Volume
5.3287099092119E+23
Space diagonal
140421838.053
Perimeter
243217758
Area
2.8460903854574E+15
Altitude
70210919.026499
Surface area
2.8460903854574E+15
Volume
6.2799448529662E+22
Height
38217983.55262