81640504 is an even 8-digits composite number following 81640503
and preceding 81640505 . In scientific notation, it is written as 8.1640504 × 10^7.
The sum of its digits is 28. It has a total of 6 prime factors and 32 positive divisors.
There are 36317920 positive integers (up to 81640504) that are relatively prime to 81640504.
81640504 has 32 divisors, whose sum is 170553600
The reverse of 81640504 is 40504618
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million six hundred forty thousand five hundred four
Scientific notation
8.1640504 × 10^7
Engineering notation
8.1640504 × 10^6
Prime Factorization
2 × 2 × 2 × 11 × 47 × 19739
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
20410126
Product of the distinct prime numbers
The prime factorization of 81640504 is 2 × 2 × 2 × 11 × 47 × 19739.
Since it has a total of 6 prime factors.
6 , 10 , 91 , 76 , 252 , 180 , 4135 , 7279 , 56182 , 66851 , 625064 , 715086 , 472359 , 5291941 , 38798865 , 76023872 , 193569013 , 296866694 , 7494706108 , 9598979242
n×2
163281008
n×3
244921512
n×4
326562016
n×5
408202520
n÷2
40820252
n÷3
27213501.333333
n÷3
20410126
n÷5
16328100.8
n2
6665171893374016
n3
5.4414799262169E+23
n4
4.4424516368223E+31
n5
3.626839906258E+39
2 √n
9035.5134884521
3 √n
433.81233081776
4 √n
95.055318044032
5 √n
38.227961101589
1 , 2 , 4 , 8 , 11 , 22 , 44 , 47 , 88 , 94 , 188 , 376 , 517 , 1034 , 2068 , 4136 , 19739 , 39478 , 78956 , 157912 , 217129 , 434258 , 868516 , 927733 , 1737032 , 1855466 , 3710932 , 7421864 , 10205063 , 20410126 , 40820252 , 81640504
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81640503
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81640504 can be divided by 32 positive divisors.
The sum of these divisors (counting 81640504) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110111011011110000111000
3
Ternary
12200121202201101
4
Quaternary
10313123300320
5
Quinary
131344444004
6
Senary
12033501144
8
Octal
467336070
10
Decimal
81640504
12
Duodecimal
234117b4
16
Hexadecimal
4ddbc38
20
Vigesimal
15a5154
36
Base36
1clu7s
md5
5a563a5bdab51003247eceef15ed08dc
sha1
594854dede765dbc6019a3ad8d373d07e616422e
sha256
4aed095b7d72a6ef06054d3db4e5066c82e07d644d73f411f895a40fd4b1e8f2
sha512
8aff4d4913a4e930f24d43a67522196dbc3f0097b155ce9845c863f2f8994ef597acbfb699a94b965a623e08745c694cced9e982ab9393c9768cad6025431b22
ripemd-160
e95e03e1b2d2aadf0efb3855cc6eec45e1f1d420
Diameter
163281008
Circumference
512962415.20354
Area
2.0939255055137E+16
Volume
2.2793217814479E+24
Surface area
8.3757020220548E+16
Circumference
512962415.20354
Perimeter
326562016
Area
6665171893374016
Diagonal
115457107.99577
Surface area
39991031360244096
Volume
5.4414799262169E+23
Space diagonal
141405500.88353
Perimeter
244921512
Area
2.886104090126E+15
Altitude
70702750.441765
Surface area
2.886104090126E+15
Volume
6.4128455925307E+22
Height
38485702.665258