81678204 is an even 8-digits composite number following 81678203
and preceding 81678205 . In scientific notation, it is written as 8.1678204 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 27226056 positive integers (up to 81678204) that are relatively prime to 81678204.
81678204 has 12 divisors, whose sum is 158818800
The reverse of 81678204 is 40287618
Previous prime number is 9
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
eighty-one million six hundred seventy-eight thousand two hundred four
Scientific notation
8.1678204 × 10^7
Engineering notation
8.1678204 × 10^6
Prime Factorization
2 × 2 × 9 × 2268839
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
40839102
Product of the distinct prime numbers
The prime factorization of 81678204 is 2 × 2 × 9 × 2268839.
Since it has a total of 4 prime factors.
3 , 4 , 39 , 64 , 306 , 809 , 5540 , 2180 , 79774 , 34338 , 93167 , 282807 , 7232273 , 3831547 , 75360132 , 81329435 , 243235469 , 439687367 , 786235508 , 2031426216
n×2
163356408
n×3
245034612
n×4
326712816
n×5
408391020
n÷2
40839102
n÷3
27226068
n÷3
20419551
n÷5
16335640.8
n2
6671329008665616
n3
5.4490217172091E+23
n4
4.4506630741863E+31
n5
3.6352216650866E+39
2 √n
9037.5994600336
3 √n
433.87909591305
4 √n
95.066289819439
5 √n
38.231491035704
1 , 2 , 4 , 9 , 18 , 36 , 2268839 , 4537678 , 9075356 , 20419551 , 40839102 , 81678204
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81678203
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81678204 can be divided by 12 positive divisors.
The sum of these divisors (counting 81678204) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110111100100111101111100
3
Ternary
12200200200102200
4
Quaternary
10313210331330
5
Quinary
131402200304
6
Senary
12034351500
8
Octal
467447574
10
Decimal
81678204
12
Duodecimal
2342b590
16
Hexadecimal
4de4f7c
20
Vigesimal
15a9fa4
36
Base36
1cmnb0
md5
3141f821341e196ec190efd7a8f7db28
sha1
91b4c8d5498d83d9535b75a39c3bb496f2a7f5b7
sha256
94eaf65a925fe1f1536225e9723a5fc86cc1729b532cb88b8965b3ba6e533dde
sha512
b6ca97bc7066ac1a3ea2473992eeffb4353ebd05a1075ecf9a31e1813813086ae8a12f24594508f188fbaa2c25d4b675c3c7a60fc8c2b415c05b285b4eb76e21
ripemd-160
069efc7fa0ffd45d093bfd57f0127a7d4041b15d
Diameter
163356408
Circumference
513199291.28962
Area
2.0958598203304E+16
Volume
2.2824808794714E+24
Surface area
8.3834392813218E+16
Circumference
513199291.28962
Perimeter
326712816
Area
6671329008665616
Diagonal
115510423.84708
Surface area
40027974051993696
Volume
5.4490217172091E+23
Space diagonal
141470799.19898
Perimeter
245034612
Area
2.8887701992542E+15
Altitude
70735399.599488
Surface area
2.8887701992542E+15
Volume
6.4217336784522E+22
Height
38503474.615692