81363965 is an odd 8-digits composite number following 81363964
and preceding 81363966 . In scientific notation, it is written as 8.1363965 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 64817872 positive integers (up to 81363965) that are relatively prime to 81363965.
81363965 has 8 divisors, whose sum is 98046720
The reverse of 81363965 is 56936318
Previous prime number is 239
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-one million three hundred sixty-three thousand nine hundred sixty-five
Scientific notation
8.1363965 × 10^7
Engineering notation
8.1363965 × 10^6
Prime Factorization
5 × 239 × 68087
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81363965
Product of the distinct prime numbers
The prime factorization of 81363965 is 5 × 239 × 68087.
Since it has a total of 3 prime factors.
5 , 8 , 52 , 25 , 134 , 970 , 3373 , 4012 , 5772 , 54936 , 100601 , 435905 , 7537461 , 3240347 , 58997303 , 95585383 , 211334805 , 813076014 , 1674652146 , 5172837640
n×2
162727930
n×3
244091895
n×4
325455860
n×5
406819825
n÷2
40681982.5
n÷3
27121321.666667
n÷3
20340991.25
n÷5
16272793
n2
6620094800521225
n3
5.3863716164629E+23
n4
4.3825655167888E+31
n5
3.5658290731821E+39
2 √n
9020.1976142433
3 √n
433.32196255502
4 √n
94.974720922166
5 √n
38.202028202438
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
-81363964
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 81363965 can be divided by 8 positive divisors.
The sum of these divisors (counting 81363965) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110011000001111111101
3
Ternary
12200002201101012
4
Quaternary
10312120033331
5
Quinary
131312121330
6
Senary
12023525005
8
Octal
466301775
10
Decimal
81363965
12
Duodecimal
232b9765
16
Hexadecimal
4d983fd
20
Vigesimal
158a9i5
36
Base36
1cfwu5
md5
4bdd0608516df47c98bcaad83605f5a1
sha1
bdf4f4dbc5ba4f6156c708285f4c8451af512c72
sha256
8fb1ac1ff3b337263ef2c369224c4b597d72638146e19d25556c7cc98959352b
sha512
6f461610b9ef18d4215a3b0079e8a3b3e03c0706b928fa8d23271e4d5fb8151769af746ee772ae7a5b634c1082c459cdda751372e0e4eac18984cce5af642102
ripemd-160
10a203ebd3e46a9c29dede1e49a7076e3b19a4ae
Diameter
162727930
Circumference
511224869.42187
Area
2.0797641191385E+16
Volume
2.2562380666379E+24
Surface area
8.3190564765542E+16
Circumference
511224869.42187
Perimeter
325455860
Area
6620094800521225
Diagonal
115066022.79145
Surface area
39720568803127350
Volume
5.3863716164629E+23
Space diagonal
140926521.28526
Perimeter
244091895
Area
2.8665851363563E+15
Altitude
70463260.642628
Surface area
2.8665851363563E+15
Volume
6.3478998266528E+22
Height
38355340.930483