81682015 is an odd 8-digits composite number following 81682014
and preceding 81682016 . In scientific notation, it is written as 8.1682015 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 65312640 positive integers (up to 81682015) that are relatively prime to 81682015.
81682015 has 8 divisors, whose sum is 98067888
The reverse of 81682015 is 51028618
Previous prime number is 3313
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million six hundred eighty-two thousand fifteen
Scientific notation
8.1682015 × 10^7
Engineering notation
8.1682015 × 10^6
Prime Factorization
5 × 3313 × 4931
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81682015
Product of the distinct prime numbers
The prime factorization of 81682015 is 5 × 3313 × 4931.
Since it has a total of 3 prime factors.
6 , 8 , 85 , 82 , 205 , 329 , 6169 , 2917 , 39659 , 39154 , 931397 , 151048 , 2930652 , 5527109 , 73453285 , 10077736 , 751046408 , 412310438 , 2048091387 , 8013072355
n×2
163364030
n×3
245046045
n×4
326728060
n×5
408410075
n÷2
40841007.5
n÷3
27227338.333333
n÷3
20420503.75
n÷5
16336403
n2
6671951574460225
n3
5.4497844858433E+23
n4
4.4514937811942E+31
n5
3.6360698180791E+39
2 √n
9037.8102989607
3 √n
433.88584388838
4 √n
95.067398717755
5 √n
38.231847795491
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81682014
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81682015 can be divided by 8 positive divisors.
The sum of these divisors (counting 81682015) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111100101111001011111
3
Ternary
12200200212122211
4
Quaternary
10313211321133
5
Quinary
131402311030
6
Senary
12034421251
8
Octal
467457137
10
Decimal
81682015
12
Duodecimal
23431827
16
Hexadecimal
4de5e5f
20
Vigesimal
15aa50f
36
Base36
1cmq8v
md5
83642e9f2d48b0a26df4bcd6f8e36cff
sha1
f946b0b218f01f3789eddcbdcd21fca39fd1accc
sha256
4f9324238ee9d70f122e3bf2fbec8d0dcc6928ff5c56fe7bfb86e5236b303b7a
sha512
c5b823ec45738b93fbce9a9eece3871125b0208d1a988eb3158b1cf58868bb7558e633accea8ada14183d620256e047447c0c89437127e5be7433454b2e96513
ripemd-160
ee90dbbe804237193a98c4752554ff5d46c240f8
Diameter
163364030
Circumference
513223236.50882
Area
2.0960554051431E+16
Volume
2.2828003872497E+24
Surface area
8.3842216205724E+16
Circumference
513223236.50882
Perimeter
326728060
Area
6671951574460225
Diagonal
115515813.41496
Surface area
40031709446761350
Volume
5.4497844858433E+23
Space diagonal
141477400.0446
Perimeter
245046045
Area
2.8890397781511E+15
Altitude
70738700.022302
Surface area
2.8890397781511E+15
Volume
6.4226326099084E+22
Height
38505271.138321