81310 is an even 5-digits composite number following 81309
and preceding 81311 . In scientific notation, it is written as 8.1310 × 10^4.
The sum of its digits is 13. It has a total of 4 prime factors and 16 positive divisors.
There are 31648 positive integers (up to 81310) that are relatively prime to 81310.
81310 has 16 divisors, whose sum is 150336
The reverse of 81310 is 01318
Previous prime number is 47
Is Prime? no
Number parity even
Number length 5
Sum of Digits 13
Digital Root 4
Name
eighty-one thousand three hundred ten
Scientific notation
8.1310 × 10^4
Engineering notation
8.1310 × 10^3
Prime Factorization
2 × 5 × 47 × 173
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81310
Product of the distinct prime numbers
The prime factorization of 81310 is 2 × 5 × 47 × 173.
Since it has a total of 4 prime factors.
7 , 4 , 62 , 2 , 133 , 174 , 8345 , 4076 , 49393 , 8438 , 763398 , 374958 , 6145267 , 3966976 , 44769045 , 753923 , 388949098 , 952027088 , 547843831 , 1942358953
n×2
162620
n×3
243930
n×4
325240
n×5
406550
n÷2
40655
n÷3
27103.333333333
n÷3
20327.5
n÷5
16262
n2
6611316100
n3
537566112091000
n4
4.3709500574119E+19
n5
3.5540194916816E+24
2 √n
285.14908381406
3 √n
43.322614048149
4 √n
16.886357920347
5 √n
9.5946423854774
1 , 2 , 5 , 10 , 47 , 94 , 173 , 235 , 346 , 470 , 865 , 1730 , 8131 , 16262 , 40655 , 81310
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
-81309
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 81310 can be divided by 16 positive divisors.
The sum of these divisors (counting 81310) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10011110110011110
3
Ternary
11010112111
4
Quaternary
103312132
5
Quinary
10100220
6
Senary
1424234
8
Octal
236636
10
Decimal
81310
12
Duodecimal
3b07a
16
Hexadecimal
13d9e
20
Vigesimal
a35a
36
Base36
1qqm
md5
96ee07ff556c692c3899b9251d685c20
sha1
55bc72ba10067d5c7735f8af342fee7ac2ab8acc
sha256
b0fa134bb9e712c63b915faf458defe27665fac94429ec0bfa788d9da7505a50
sha512
6a034f5d000db7e1f7200bd047b35f0c82b5251481f86777f3abc538c2c22dbcbe22402995894aa612ab2a3167b65019054c77e3ab4e22828548ea646888a478
ripemd-160
6801be585a2d48a8218d04d576a9e46ced9d74bc
Diameter
162620
Circumference
510885.79732677
Area
20770062090.32
Volume
2.2517516647519E+15
Surface area
83080248361.28
Circumference
510885.79732677
Perimeter
325240
Area
6611316100
Diagonal
114989.70475656
Surface area
39667896600
Volume
537566112091000
Space diagonal
140833.05116343
Perimeter
243930
Area
2862783847.5245
Altitude
70416.525581713
Surface area
2862783847.5245
Volume
63352773865939
Height
38329.901585519