81682011 is an odd 8-digits composite number following 81682010
and preceding 81682012 . In scientific notation, it is written as 8.1682011 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 54454668 positive integers (up to 81682011) that are relatively prime to 81682011.
81682011 has 4 divisors, whose sum is 90757800
The reverse of 81682011 is 11028618
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
eighty-one million six hundred eighty-two thousand eleven
Scientific notation
8.1682011 × 10^7
Engineering notation
8.1682011 × 10^6
Prime Factorization
9 × 9075779
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81682011
Product of the distinct prime numbers
The prime factorization of 81682011 is 9 × 9075779.
Since it has a total of 2 prime factors.
8 , 10 , 9 , 61 , 252 , 262 , 8421 , 2307 , 89783 , 43127 , 443537 , 208286 , 1256771 , 8761502 , 93613640 , 96829544 , 568461956 , 356848927 , 5017444339 , 781364275
n×2
163364022
n×3
245046033
n×4
326728044
n×5
408410055
n÷2
40841005.5
n÷3
27227337
n÷3
20420502.75
n÷5
16336402.2
n2
6671950921004121
n3
5.4497836852092E+23
n4
4.4514929092288E+31
n5
3.6360689277805E+39
2 √n
9037.8100776682
3 √n
433.88583680586
4 √n
95.067397553884
5 √n
38.231847421045
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
-81682010
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 81682011 can be divided by 4 positive divisors.
The sum of these divisors (counting 81682011) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111100101111001011011
3
Ternary
12200200212122200
4
Quaternary
10313211321123
5
Quinary
131402311021
6
Senary
12034421243
8
Octal
467457133
10
Decimal
81682011
12
Duodecimal
23431823
16
Hexadecimal
4de5e5b
20
Vigesimal
15aa50b
36
Base36
1cmq8r
md5
fa99c3b1d4bb480f752b89ebeb7b92f6
sha1
f86d2ca8ee745079d2d68b0d8f079304670fba01
sha256
de7a4946b9a760a7ea67ecf7f162853146cbcc4d2c3244b309bfa12eced0fd62
sha512
e35582958e38286811eef8623ae1cc50090fdd9fdce91e5fb8acc1fe7cdbf68734350f2f2f89ef4eb9007c9ba144d26238f31c253a90ff4ed1d38cef80c59285
ripemd-160
e5c3b826cc5cec259026e3a9d559eaf1349e5e14
Diameter
163364022
Circumference
513223211.37608
Area
2.0960551998538E+16
Volume
2.2828000518809E+24
Surface area
8.3842207994153E+16
Circumference
513223211.37608
Perimeter
326728044
Area
6671950921004121
Diagonal
115515807.75811
Surface area
40031705526024726
Volume
5.4497836852092E+23
Space diagonal
141477393.1164
Perimeter
245046033
Area
2.8890394951963E+15
Altitude
70738696.5582
Surface area
2.8890394951963E+15
Volume
6.422631666352E+22
Height
38505269.252703