81132015 is an odd 8-digits composite number following 81132014
and preceding 81132016 . In scientific notation, it is written as 8.1132015 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 43270400 positive integers (up to 81132015) that are relatively prime to 81132015.
81132015 has 8 divisors, whose sum is 129811248
The reverse of 81132015 is 51023118
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
eighty-one million one hundred thirty-two thousand fifteen
Scientific notation
8.1132015 × 10^7
Engineering notation
8.1132015 × 10^6
Prime Factorization
3 × 5 × 5408801
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81132015
Product of the distinct prime numbers
The prime factorization of 81132015 is 3 × 5 × 5408801.
Since it has a total of 3 prime factors.
8 , 4 , 1 , 31 , 504 , 530 , 2579 , 7705 , 68171 , 34588 , 527971 , 239276 , 4673972 , 6548474 , 5305016 , 33244270 , 803332741 , 510124134 , 7137400172 , 7230110156
n×2
162264030
n×3
243396045
n×4
324528060
n×5
405660075
n÷2
40566007.5
n÷3
27044005
n÷3
20283003.75
n÷5
16226403
n2
6582403857960225
n3
5.3404368854009E+23
n4
4.332804054929E+31
n5
3.5152912357656E+39
2 √n
9007.331180766
3 √n
432.90980347795
4 √n
94.906960654981
5 √n
38.180222278931
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
-81132014
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 81132015 can be divided by 8 positive divisors.
The sum of these divisors (counting 81132015) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011111100111101111
3
Ternary
12122122221012110
4
Quaternary
10311133213233
5
Quinary
131232211030
6
Senary
12014535103
8
Octal
465374757
10
Decimal
81132015
12
Duodecimal
23207493
16
Hexadecimal
4d5f9ef
20
Vigesimal
1571a0f
36
Base36
1caxv3
md5
fd4b34b756aae58406dbf3a434e92d28
sha1
a15a794727bbe9db5056bb54c46093e65a933f32
sha256
131867cb6fbbf282b5ee71faa86a609cf3ea3d86b487fb19a927d6cfb9d9719b
sha512
14ad0c4f731ad4e75ff782a77a6adfa75cbd57fe99fb7c94543e0f8cf6e15a537a9965f80926384327e32e1290633e6c34a3d17714a3e34d7f5132862a4a5655
ripemd-160
8ac45c5d7378fb0490a954d3425e68039c211a49
Diameter
162264030
Circumference
509767484.58987
Area
2.0679231603129E+16
Volume
2.2369969714847E+24
Surface area
8.2716926412516E+16
Circumference
509767484.58987
Perimeter
324528060
Area
6582403857960225
Diagonal
114737995.95566
Surface area
39494423147761350
Volume
5.3404368854009E+23
Space diagonal
140524772.10044
Perimeter
243396045
Area
2.8502644794811E+15
Altitude
70262386.05022
Surface area
2.8502644794811E+15
Volume
6.2937652269429E+22
Height
38245998.651886