82782021 is an odd 8-digits composite number following 82782020
and preceding 82782022 . In scientific notation, it is written as 8.2782021 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 47303424 positive integers (up to 82782021) that are relatively prime to 82782021.
82782021 has 16 divisors, whose sum is 128720000
The reverse of 82782021 is 12028728
Previous prime number is 49
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-two million seven hundred eighty-two thousand twenty-one
Scientific notation
8.2782021 × 10^7
Engineering notation
8.2782021 × 10^6
Prime Factorization
3 × 7 × 49 × 80449
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
82782021
Product of the distinct prime numbers
The prime factorization of 82782021 is 3 × 7 × 49 × 80449.
Since it has a total of 4 prime factors.
7 , 3 , 48 , 46 , 563 , 200 , 6595 , 4424 , 55744 , 25151 , 768898 , 565367 , 7573474 , 6517386 , 28405485 , 6797878 , 46341509 , 185904820 , 9004681366 , 6788870223
n×2
165564042
n×3
248346063
n×4
331128084
n×5
413910105
n÷2
41391010.5
n÷3
27594007
n÷3
20695505.25
n÷5
16556404.2
n2
6852863000844441
n3
5.6729384884603E+23
n4
4.6961731308343E+31
n5
3.8875870273636E+39
2 √n
9098.4625624333
3 √n
435.82486899229
4 √n
95.385861438859
5 √n
38.334270668553
1 , 3 , 7 , 21 , 49 , 147 , 343 , 1029 , 80449 , 241347 , 563143 , 1689429 , 3942001 , 11826003 , 27594007 , 82782021
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
-82782020
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 82782021 can be divided by 16 positive divisors.
The sum of these divisors (counting 82782021) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111011110010011101000101
3
Ternary
12202202202120210
4
Quaternary
10323302131011
5
Quinary
132143011041
6
Senary
12114150033
8
Octal
473623505
10
Decimal
82782021
12
Duodecimal
23882319
16
Hexadecimal
4ef2745
20
Vigesimal
15h7f11
36
Base36
1dab0l
md5
2a564f50dfa75d5816059418a09af775
sha1
706a34272ef1d206e0c397ca2bb3f6d1784988ac
sha256
fa53972b024a16a1885e576ada6b14acdd05655d1a30711a0dd6c5effcb2c6c3
sha512
2be1df29fc957aef8a505c48471356cac68c072d22fd98773aa6f32b37ba86a541881111fe7334a71a7ab52f5d6c987dd2c7f88b5b3802231e577f29cb6dc777
ripemd-160
c45aa2cef03534f56fa12d8e622663298a078af5
Diameter
165564042
Circumference
520134778.04583
Area
2.152890405951E+16
Volume
2.3762749172818E+24
Surface area
8.6115616238041E+16
Circumference
520134778.04583
Perimeter
331128084
Area
6852863000844441
Diagonal
117071456.81885
Surface area
41117178005066646
Volume
5.6729384884603E+23
Space diagonal
143382666.32523
Perimeter
248346063
Area
2.9673767236929E+15
Altitude
71691333.162617
Surface area
2.9673767236929E+15
Volume
6.685622124074E+22
Height
39023818.939618