82661985 is an odd 8-digits composite number following 82661984
and preceding 82661986 . In scientific notation, it is written as 8.2661985 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 37787904 positive integers (up to 82661985) that are relatively prime to 82661985.
82661985 has 16 divisors, whose sum is 117565056
The reverse of 82661985 is 58916628
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighty-two million six hundred sixty-one thousand nine hundred eighty-five
Scientific notation
8.2661985 × 10^7
Engineering notation
8.2661985 × 10^6
Prime Factorization
5 × 27 × 7 × 87473
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
82661985
Product of the distinct prime numbers
The prime factorization of 82661985 is 5 × 27 × 7 × 87473.
Since it has a total of 4 prime factors.
8 , 4 , 58 , 31 , 368 , 861 , 2118 , 6902 , 69066 , 60878 , 854981 , 671282 , 5230473 , 8961832 , 66794742 , 16396189 , 795385203 , 590849323 , 3845299956 , 7691421207
n×2
165323970
n×3
247985955
n×4
330647940
n×5
413309925
n÷2
41330992.5
n÷3
27553995
n÷3
20665496.25
n÷5
16532397
n2
6833003764140225
n3
5.648296546563E+23
n4
4.6689940440754E+31
n5
3.8594831563645E+39
2 √n
9091.8636703373
3 √n
435.61411477459
4 √n
95.351264649911
5 √n
38.323147084725
1 , 5 , 7 , 27 , 35 , 135 , 189 , 945 , 87473 , 437365 , 612311 , 2361771 , 3061555 , 11808855 , 16532397 , 82661985
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
-82661984
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 82661985 can be divided by 16 positive divisors.
The sum of these divisors (counting 82661985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111011010101001001100001
3
Ternary
12202112122221000
4
Quaternary
10323111021201
5
Quinary
132130140420
6
Senary
12111422213
8
Octal
473251141
10
Decimal
82661985
12
Duodecimal
23824969
16
Hexadecimal
4ed5261
20
Vigesimal
15gcej5
36
Base36
1d7qe9
md5
47eb243b0b6180720ae8516d75a0ba94
sha1
17656da2d2494b3ebda8647f9f3be778487a981d
sha256
9a6cb6d23d86ff03009963ebc8cf5ae09a925acc676372178e91b1424271bdac
sha512
e90e494e3d66386d7a8acfd99d3abf0367dcbb820c270ae1a675a02dbe44c48e04162ab00d178eb634d21ed36a6796f5c1500d783ef29d792156b5e69531e893
ripemd-160
ff21ddbbef15115790eef775a947c531d47147af
Diameter
165323970
Circumference
519380569.6143
Area
2.1466514427374E+16
Volume
2.3659529247972E+24
Surface area
8.5866057709497E+16
Circumference
519380569.6143
Perimeter
330647940
Area
6833003764140225
Diagonal
116901700.27968
Surface area
40998022584841350
Volume
5.648296546563E+23
Space diagonal
143174757.8745
Perimeter
247985955
Area
2.9587774219501E+15
Altitude
71587378.937248
Surface area
2.9587774219501E+15
Volume
6.6565813170455E+22
Height
38967233.42656