81366586 is an even 8-digits composite number following 81366585
and preceding 81366587 . In scientific notation, it is written as 8.1366586 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 34871388 positive integers (up to 81366586) that are relatively prime to 81366586.
81366586 has 8 divisors, whose sum is 139485600
The reverse of 81366586 is 68566318
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
eighty-one million three hundred sixty-six thousand five hundred eighty-six
Scientific notation
8.1366586 × 10^7
Engineering notation
8.1366586 × 10^6
Prime Factorization
2 × 7 × 5811899
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81366586
Product of the distinct prime numbers
The prime factorization of 81366586 is 2 × 7 × 5811899.
Since it has a total of 3 prime factors.
10 , 2 , 65 , 13 , 543 , 480 , 9844 , 7985 , 62877 , 92659 , 822217 , 191374 , 9693862 , 4876876 , 83909228 , 13732128 , 310579836 , 837945224 , 4603668761 , 7944023559
n×2
162733172
n×3
244099758
n×4
325466344
n×5
406832930
n÷2
40683293
n÷3
27122195.333333
n÷3
20341646.5
n÷5
16273317.2
n2
6620521317295396
n3
5.3868921712855E+23
n4
4.3831302512763E+31
n5
3.5664034453967E+39
2 √n
9020.3428981386
3 √n
433.32661541196
4 √n
94.975485774692
5 √n
38.202274321776
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
-81366585
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 81366586 can be divided by 8 positive divisors.
The sum of these divisors (counting 81366586) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110011000111000111010
3
Ternary
12200002211222021
4
Quaternary
10312120320322
5
Quinary
131312212321
6
Senary
12023545054
8
Octal
466307072
10
Decimal
81366586
12
Duodecimal
232bb18a
16
Hexadecimal
4d98e3a
20
Vigesimal
158ag96
36
Base36
1cfyuy
md5
b5749c804ee9762220ff698a37ca9050
sha1
39c70260112768f0fe453423c76aafa7f6e593a2
sha256
3af5fdd32ba5c13c38028394e3e8f60821e52156f195eb21eb8184bf0c6f64fa
sha512
413e362af88a758778666c48e5b72c8548563403eab4a1221f8f98dc245de9e96ce31add9bc275dac95c6a2d8c5d23bbe1912c3cfaee789935a07242ceb3072a
ripemd-160
bd5b9afe3ea6f1be80dfa36f31d45cd83ca16354
Diameter
162733172
Circumference
511241337.65056
Area
2.079898113335E+16
Volume
2.2564561161321E+24
Surface area
8.3195924533399E+16
Circumference
511241337.65056
Perimeter
325466344
Area
6620521317295396
Diagonal
115069729.4452
Surface area
39723127903772376
Volume
5.3868921712855E+23
Space diagonal
140931060.99042
Perimeter
244099758
Area
2.8667698235371E+15
Altitude
70465530.495211
Surface area
2.8667698235371E+15
Volume
6.3485133063945E+22
Height
38356576.481732