81592394 is an even 8-digits composite number following 81592393
and preceding 81592395 . In scientific notation, it is written as 8.1592394 × 10^7.
The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors.
There are 37610352 positive integers (up to 81592394) that are relatively prime to 81592394.
81592394 has 16 divisors, whose sum is 131970048
The reverse of 81592394 is 49329518
Previous prime number is 1087
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-one million five hundred ninety-two thousand three hundred ninety-four
Scientific notation
8.1592394 × 10^7
Engineering notation
8.1592394 × 10^6
Prime Factorization
2 × 13 × 1087 × 2887
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81592394
Product of the distinct prime numbers
The prime factorization of 81592394 is 2 × 13 × 1087 × 2887.
Since it has a total of 4 prime factors.
1 , 7 , 56 , 10 , 664 , 688 , 4438 , 2036 , 2630 , 4003 , 856997 , 932082 , 5520941 , 1926565 , 92538071 , 57718367 , 634769719 , 104869392 , 3055548149 , 8147923521
n×2
163184788
n×3
244777182
n×4
326369576
n×5
407961970
n÷2
40796197
n÷3
27197464.666667
n÷3
20398098.5
n÷5
16318478.8
n2
6657318758651236
n3
5.4318657513946E+23
n4
4.431989305429E+31
n5
3.6161661761235E+39
2 √n
9032.8508235219
3 √n
433.72710019818
4 √n
95.041311141639
5 √n
38.223454561848
1 , 2 , 13 , 26 , 1087 , 2174 , 2887 , 5774 , 14131 , 28262 , 37531 , 75062 , 3138169 , 6276338 , 40796197 , 81592394
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
-81592393
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 81592394 can be divided by 16 positive divisors.
The sum of these divisors (counting 81592394) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111010000000001001010
3
Ternary
12200112022201112
4
Quaternary
10313100001022
5
Quinary
131341424034
6
Senary
12032450322
8
Octal
467200112
10
Decimal
81592394
12
Duodecimal
233a99a2
16
Hexadecimal
4dd004a
20
Vigesimal
159j0je
36
Base36
1ckt3e
md5
510a9ee44adcf6f30ff354682895fcf9
sha1
845cda41356ab3b54f08efa4e987ca681f0d6705
sha256
ec302a6586dabb39a34a18bf0ead012ef5a0647d2cce6b6aa76a94771834c8d9
sha512
539585a765e5374d79baee421b314fa61a15005c1e558b05104c851356f0f4e149b6429c9b8aedd6400dd7c5a2515bc89b9761d44ca98003044344e7e3fa62fa
ripemd-160
4c149da4a866a24dbb05d21cd1b42e1217ba2f8e
Diameter
163184788
Circumference
512660131.15841
Area
2.0914583704784E+16
Volume
2.2752946053156E+24
Surface area
8.3658334819137E+16
Circumference
512660131.15841
Perimeter
326369576
Area
6657318758651236
Diagonal
115389070.18129
Surface area
39943912551907416
Volume
5.4318657513946E+23
Space diagonal
141322171.91918
Perimeter
244777182
Area
2.8827035830413E+15
Altitude
70661085.959589
Surface area
2.8827035830413E+15
Volume
6.4015151788435E+22
Height
38463023.393763