82181805 is an odd 8-digits composite number following 82181804
and preceding 82181806 . In scientific notation, it is written as 8.2181805 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 43830288 positive integers (up to 82181805) that are relatively prime to 82181805.
82181805 has 4 divisors, whose sum is 87660608
The reverse of 82181805 is 50818128
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-two million one hundred eighty-one thousand eight hundred five
Scientific notation
8.2181805 × 10^7
Engineering notation
8.2181805 × 10^6
Prime Factorization
15 × 5478787
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
82181805
Product of the distinct prime numbers
The prime factorization of 82181805 is 15 × 5478787.
Since it has a total of 2 prime factors.
9 , 3 , 82 , 97 , 337 , 210 , 9526 , 5206 , 16538 , 15232 , 247356 , 102763 , 4594793 , 8512080 , 99749050 , 93287465 , 623063633 , 953022141 , 4181361544 , 6795792246
n×2
164363610
n×3
246545415
n×4
328727220
n×5
410909025
n÷2
41090902.5
n÷3
27393935
n÷3
20545451.25
n÷5
16436361
n2
6753849073058025
n3
5.5504350752149E+23
n4
4.5614477301647E+31
n5
3.7486800787809E+39
2 √n
9065.4180819199
3 √n
434.76898818708
4 √n
95.212489106839
5 √n
38.27851975814
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
-82181804
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 82181805 can be divided by 4 positive divisors.
The sum of these divisors (counting 82181805) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111001011111111010101101
3
Ternary
12201122021020120
4
Quaternary
10321133322231
5
Quinary
132014304210
6
Senary
12053235153
8
Octal
471377255
10
Decimal
82181805
12
Duodecimal
23632ab9
16
Hexadecimal
4e5fead
20
Vigesimal
15dcea5
36
Base36
1cxfvx
md5
5fe232f889c3dac3e6c3a189f93c3a64
sha1
735c8d5f8368fb93bdac40f27f37b5699a68d574
sha256
caa9b00af075f7b3e1f1f2096337a30ec82d38a6ed113868d3d398394c6719bb
sha512
1a964cee4adc6cbc390072b85f60092a27ac01d49d286733a13dab910a95d11176f7fffbc8f0b9ecab411ae970902c24e8940ed1ff3ec1a2b5dff47908eb7f0b
ripemd-160
b5967f0e5456fdfb2e5e56cc28354a1b69836ea1
Diameter
164363610
Circumference
516363509.6935
Area
2.1217842631373E+16
Volume
2.3249608075363E+24
Surface area
8.4871370525493E+16
Circumference
516363509.6935
Perimeter
328727220
Area
6753849073058025
Diagonal
116222623.2113
Surface area
40523094438348150
Volume
5.5504350752149E+23
Space diagonal
142343061.71772
Perimeter
246545415
Area
2.9245024352971E+15
Altitude
71171530.858859
Surface area
2.9245024352971E+15
Volume
6.5412504670335E+22
Height
38740874.403767