81052015 is an odd 8-digits composite number following 81052014
and preceding 81052016 . In scientific notation, it is written as 8.1052015 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 57352320 positive integers (up to 81052015) that are relatively prime to 81052015.
81052015 has 8 divisors, whose sum is 84758240
The reverse of 81052015 is 51025018
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
eighty-one million fifty-two thousand fifteen
Scientific notation
8.1052015 × 10^7
Engineering notation
8.1052015 × 10^6
Prime Factorization
55 × 37 × 39829
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81052015
Product of the distinct prime numbers
The prime factorization of 81052015 is 55 × 37 × 39829.
Since it has a total of 3 prime factors.
4 , 8 , 46 , 20 , 219 , 909 , 9893 , 4153 , 23441 , 56192 , 237879 , 852738 , 7279420 , 4072362 , 45985611 , 32470134 , 83875506 , 152599910 , 8025872906 , 9322946222
n×2
162104030
n×3
243156045
n×4
324208060
n×5
405260075
n÷2
40526007.5
n÷3
27017338.333333
n÷3
20263003.75
n÷5
16210403
n2
6569429135560225
n3
5.3246546883686E+23
n4
4.3157399167148E+31
n5
3.4979941646566E+39
2 √n
9002.8892584548
3 √n
432.76746684423
4 √n
94.883556312223
5 √n
38.172689806785
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
-81052014
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 81052015 can be divided by 8 positive divisors.
The sum of these divisors (counting 81052015) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101001100000101101111
3
Ternary
12122111212110111
4
Quaternary
10311030011233
5
Quinary
131222131030
6
Senary
12013120451
8
Octal
465140557
10
Decimal
81052015
12
Duodecimal
23189127
16
Hexadecimal
4d4c16f
20
Vigesimal
156ba0f
36
Base36
1c984v
md5
467b515b8f9ce87f821bc2db49827f36
sha1
718d592ba9fd49219cf30de1d233897e92c4f1bd
sha256
0a95d9f26831172ad94e6fbd1d2ba018dcc6ca70ba9b69e75ed79f25d2a91b09
sha512
bcf78c93ae74baec31fff74505dc23c01fd88c2ca560e822368e479d10b949c039c9f9d65991988dc7f1ec0c14e8faf3470bb0ae37a5fb1bcb2e67844e5c5126
ripemd-160
e22b864117fb4919656e85f8eff8203aab48b65e
Diameter
162104030
Circumference
509264829.7653
Area
2.0638470310555E+16
Volume
2.2303861402509E+24
Surface area
8.2553881242219E+16
Circumference
509264829.7653
Perimeter
324208060
Area
6569429135560225
Diagonal
114624858.87067
Surface area
39416574813361350
Volume
5.3246546883686E+23
Space diagonal
140386208.03583
Perimeter
243156045
Area
2.8446462598784E+15
Altitude
70193104.017917
Surface area
2.8446462598784E+15
Volume
6.2751657293704E+22
Height
38208286.290223