82161855 is an odd 8-digits composite number following 82161854
and preceding 82161856 . In scientific notation, it is written as 8.2161855 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 43819632 positive integers (up to 82161855) that are relatively prime to 82161855.
82161855 has 4 divisors, whose sum is 83987720
The reverse of 82161855 is 55816128
Previous prime number is 45
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
eighty-two million one hundred sixty-one thousand eight hundred fifty-five
Scientific notation
8.2161855 × 10^7
Engineering notation
8.2161855 × 10^6
Prime Factorization
45 × 1825819
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
82161855
Product of the distinct prime numbers
The prime factorization of 82161855 is 45 × 1825819.
Since it has a total of 2 prime factors.
2 , 8 , 35 , 73 , 319 , 269 , 5808 , 2084 , 50322 , 34378 , 834014 , 669049 , 6644251 , 6477587 , 5732531 , 43591350 , 739256159 , 998343629 , 7784428180 , 1130517482
n×2
164323710
n×3
246485565
n×4
328647420
n×5
410809275
n÷2
41080927.5
n÷3
27387285
n÷3
20540463.75
n÷5
16432371
n2
6750570417041025
n3
5.5463938777221E+23
n4
4.5570200955429E+31
n5
3.7441322432209E+39
2 √n
9064.3176797815
3 √n
434.73380463575
4 √n
95.206710266564
5 √n
38.276661121347
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-82161854
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 82161855 can be divided by 4 positive divisors.
The sum of these divisors (counting 82161855) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111001011011000010111111
3
Ternary
12201121020212200
4
Quaternary
10321123002333
5
Quinary
132013134410
6
Senary
12053002543
8
Octal
471330277
10
Decimal
82161855
12
Duodecimal
23623453
16
Hexadecimal
4e5b0bf
20
Vigesimal
15da4cf
36
Base36
1cx0hr
md5
ce552782190ce55f007e63d32bbf24e0
sha1
d52fe98a3c403613b2a8fe181b4ec0b94cb71511
sha256
9e8b7135de52123dffb422a82f9aacd18fafc7f4507204f05fa09e5eb1b872ca
sha512
3a50aed46801082c1992b1d1a1921750cdc336878bb4fdc5da2b415a88af5e1f3e0ecaa007f6bb3940daa6073d95ad897d56d31f224766cc42dbcc5198eddbaa
ripemd-160
49fda141e78da592742aa7f11581fb0c7376ce62
Diameter
164323710
Circumference
516238160.14662
Area
2.1207542429717E+16
Volume
2.323268034689E+24
Surface area
8.4830169718867E+16
Circumference
516238160.14662
Perimeter
328647420
Area
6750570417041025
Diagonal
116194409.65073
Surface area
40503422502246150
Volume
5.5463938777221E+23
Space diagonal
142308507.30411
Perimeter
246485565
Area
2.9230827355966E+15
Altitude
71154253.652053
Surface area
2.9230827355966E+15
Volume
6.5364878701148E+22
Height
38731469.883577