81682012 is an even 8-digits composite number following 81682011
and preceding 81682013 . In scientific notation, it is written as 8.1682012 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 6 positive divisors.
There are 40841004 positive integers (up to 81682012) that are relatively prime to 81682012.
81682012 has 6 divisors, whose sum is 142943528
The reverse of 81682012 is 21028618
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million six hundred eighty-two thousand twelve
Scientific notation
8.1682012 × 10^7
Engineering notation
8.1682012 × 10^6
Prime Factorization
2 × 2 × 20420503
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
40841006
Product of the distinct prime numbers
The prime factorization of 81682012 is 2 × 2 × 20420503.
Since it has a total of 3 prime factors.
4 , 3 , 4 , 70 , 522 , 712 , 2402 , 3109 , 70878 , 6226 , 386384 , 523819 , 8028060 , 6954419 , 98338944 , 91243499 , 368807768 , 273332898 , 2460698463 , 6976544241
n×2
163364024
n×3
245046036
n×4
326728048
n×5
408410060
n÷2
40841006
n÷3
27227337.333333
n÷3
20420503
n÷5
16336402.4
n2
6671951084368144
n3
5.4497838853677E+23
n4
4.4514931272201E+31
n5
3.6360691503551E+39
2 √n
9037.8101329913
3 √n
433.88583857649
4 √n
95.067397844852
5 √n
38.231847514656
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81682011
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81682012 can be divided by 6 positive divisors.
The sum of these divisors (counting 81682012) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
100110111100101111001011100
3
Ternary
12200200212122201
4
Quaternary
10313211321130
5
Quinary
131402311022
6
Senary
12034421244
8
Octal
467457134
10
Decimal
81682012
12
Duodecimal
23431824
16
Hexadecimal
4de5e5c
20
Vigesimal
15aa50c
36
Base36
1cmq8s
md5
a3d7423bf53dadc702a513cdb4c11625
sha1
e6bf293cea498d7d5f02a39b9258e035c9bb0809
sha256
fb0499f0afaada209d2ad5602a3ff5bd96a388c1b19ff94fa118cac62b616f4d
sha512
c7c0d1eac00e927ea54ee096a23fc55d66c0428f948e5f6baa02b5396da6da580aeb96ba0456f82397f82e1e05adf6d61d90e1c37f9588438b1142d62322fc7a
ripemd-160
22c69de31ff07f844aa1174f15928b5e3039ddb3
Diameter
163364024
Circumference
513223217.65927
Area
2.0960552511761E+16
Volume
2.2828001357231E+24
Surface area
8.3842210047046E+16
Circumference
513223217.65927
Perimeter
326728048
Area
6671951084368144
Diagonal
115515809.17232
Surface area
40031706506208864
Volume
5.4497838853677E+23
Space diagonal
141477394.84845
Perimeter
245046036
Area
2.889039565935E+15
Altitude
70738697.424225
Surface area
2.889039565935E+15
Volume
6.4226319022411E+22
Height
38505269.724107