81232015 is an odd 8-digits composite number following 81232014
and preceding 81232016 . In scientific notation, it is written as 8.1232015 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 64985608 positive integers (up to 81232015) that are relatively prime to 81232015.
81232015 has 4 divisors, whose sum is 97478424
The reverse of 81232015 is 51023218
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
eighty-one million two hundred thirty-two thousand fifteen
Scientific notation
8.1232015 × 10^7
Engineering notation
8.1232015 × 10^6
Prime Factorization
5 × 16246403
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81232015
Product of the distinct prime numbers
The prime factorization of 81232015 is 5 × 16246403.
Since it has a total of 2 prime factors.
6 , 2 , 67 , 73 , 394 , 576 , 455 , 2780 , 63188 , 19073 , 500042 , 765138 , 2835085 , 8623958 , 43412794 , 24709103 , 643435492 , 55524987 , 4901936747 , 1505894955
n×2
162464030
n×3
243696045
n×4
324928060
n×5
406160075
n÷2
40616007.5
n÷3
27077338.333333
n÷3
20308003.75
n÷5
16246403
n2
6598640260960225
n3
5.3602084465792E+23
n4
4.3542053293565E+31
n5
3.5370087262737E+39
2 √n
9012.8805051437
3 √n
433.08759275258
4 √n
94.936191756062
5 √n
38.189629517846
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
-81232014
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 81232015 can be divided by 4 positive divisors.
The sum of these divisors (counting 81232015) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101111000000010001111
3
Ternary
12122212000101011
4
Quaternary
10311320002033
5
Quinary
131243411030
6
Senary
12021030051
8
Octal
465700217
10
Decimal
81232015
12
Duodecimal
23255327
16
Hexadecimal
4d7808f
20
Vigesimal
157e00f
36
Base36
1cd30v
md5
fc0e9dce50b744b05442c8531e319dee
sha1
080c2d3e7c711664a50c892e25e62c0a294f4731
sha256
fa6c5fa4b622ed8893a8f689d0a03b2ff35bf971a9d05d2ffc11487a4e270a8c
sha512
f8012aad7cb888e79308603a13258d6c967fb10f3a6b25bf6bb8d7eae97ef755d432216791cd5999b09e8e3f31311d1efa78510d00fa12f7eb826630aad4a0d4
ripemd-160
f2845e25efdfd887cfb82a5b4946809e2bfcf90b
Diameter
162464030
Circumference
510395803.12059
Area
2.0730239767514E+16
Volume
2.2452788636644E+24
Surface area
8.2920959070058E+16
Circumference
510395803.12059
Perimeter
324928060
Area
6598640260960225
Diagonal
114879417.31189
Surface area
39591841565761350
Volume
5.3602084465792E+23
Space diagonal
140697977.1812
Perimeter
243696045
Area
2.8572950482132E+15
Altitude
70348988.590599
Surface area
2.8572950482132E+15
Volume
6.3170662352493E+22
Height
38293139.103965