82051281 is an odd 8-digits composite number following 82051280
and preceding 82051282 . In scientific notation, it is written as 8.2051281 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors.
There are 48296160 positive integers (up to 82051281) that are relatively prime to 82051281.
82051281 has 24 divisors, whose sum is 133189056
The reverse of 82051281 is 18215028
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
eighty-two million fifty-one thousand two hundred eighty-one
Scientific notation
8.2051281 × 10^7
Engineering notation
8.2051281 × 10^6
Prime Factorization
3 × 3 × 13 × 23 × 30491
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
27350427
Product of the distinct prime numbers
The prime factorization of 82051281 is 3 × 3 × 13 × 23 × 30491.
Since it has a total of 5 prime factors.
8 , 4 , 39 , 88 , 166 , 1000 , 3193 , 7004 , 50494 , 98324 , 954231 , 330777 , 2491007 , 4995827 , 12346645 , 20787887 , 137496100 , 5839602 , 1144814863 , 2382094138
n×2
164102562
n×3
246153843
n×4
328205124
n×5
410256405
n÷2
41025640.5
n÷3
27350427
n÷3
20512820.25
n÷5
16410256.2
n2
6732412713740961
n3
5.5240308738313E+23
n4
4.5325380948141E+31
n5
3.719005568608E+39
2 √n
9058.2162151276
3 √n
434.53869448283
4 √n
95.174661623394
5 √n
38.266352971007
1 , 3 , 9 , 13 , 23 , 39 , 69 , 117 , 207 , 299 , 897 , 2691 , 30491 , 91473 , 274419 , 396383 , 701293 , 1189149 , 2103879 , 3567447 , 6311637 , 9116809 , 27350427 , 82051281
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-82051280
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 82051281 can be divided by 24 positive divisors.
The sum of these divisors (counting 82051281) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100111001000000000011010001
3
Ternary
12201101122012100
4
Quaternary
10321000003101
5
Quinary
132001120111
6
Senary
12050351013
8
Octal
471000321
10
Decimal
82051281
12
Duodecimal
2358b469
16
Hexadecimal
4e400d1
20
Vigesimal
15cg841
36
Base36
1cun69
md5
e817382d1b163c578b3d4503bc7def31
sha1
83c7275a4bafddf48909572c29e4472bf0aa363f
sha256
449c186954a976ab81fe52d393448a3efee9dd8522c25aa9e913e84e78e74a8c
sha512
cf41283365eb478348525210d661a5c5a334b02bfd31a8dcb84cf4284b718adea74a2ef1ee5a7d419c520bff3794766ef872c945667c5d1b9501b96c3bfa454d
ripemd-160
e617ee90624514b1247b1cfa4e3b96095a042931
Diameter
164102562
Circumference
515543403.21446
Area
2.1150498322423E+16
Volume
2.3139006415242E+24
Surface area
8.4601993289692E+16
Circumference
515543403.21446
Perimeter
328205124
Area
6732412713740961
Diagonal
116038034.40029
Surface area
40394476282445766
Volume
5.5240308738313E+23
Space diagonal
142116987.51811
Perimeter
246153843
Area
2.9152202194305E+15
Altitude
71058493.759055
Surface area
2.9152202194305E+15
Volume
6.5101328172833E+22
Height
38679344.800095