81014915 is an odd 8-digits composite number following 81014914
and preceding 81014916 . In scientific notation, it is written as 8.1014915 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 64811928 positive integers (up to 81014915) that are relatively prime to 81014915.
81014915 has 4 divisors, whose sum is 97217904
The reverse of 81014915 is 51941018
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million fourteen thousand nine hundred fifteen
Scientific notation
8.1014915 × 10^7
Engineering notation
8.1014915 × 10^6
Prime Factorization
5 × 16202983
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81014915
Product of the distinct prime numbers
The prime factorization of 81014915 is 5 × 16202983.
Since it has a total of 2 prime factors.
9 , 1 , 93 , 89 , 242 , 460 , 2893 , 5633 , 4780 , 27856 , 149214 , 687188 , 5762154 , 3274872 , 30710199 , 60872556 , 166663633 , 315611856 , 333239028 , 5837765081
n×2
162029830
n×3
243044745
n×4
324059660
n×5
405074575
n÷2
40507457.5
n÷3
27004971.666667
n÷3
20253728.75
n÷5
16202983
n2
6563416452457225
n3
5.3173462600542E+23
n4
4.3078435528386E+31
n5
3.4899957926652E+39
2 √n
9000.8285729704
3 √n
432.70142644056
4 √n
94.872696667536
5 √n
38.169194603959
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
-81014914
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 81014915 can be divided by 4 positive divisors.
The sum of these divisors (counting 81014915) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101000011000010000011
3
Ternary
12122102222120102
4
Quaternary
10311003002003
5
Quinary
131214434130
6
Senary
12012233015
8
Octal
465030203
10
Decimal
81014915
12
Duodecimal
2316b76b
16
Hexadecimal
4d43083
20
Vigesimal
1566h5f
36
Base36
1c8fib
md5
597616aabb87d0ae1c7a892ee26d25ae
sha1
a5b9466b164a8e34bf9c431292f41bbb45b494ee
sha256
ac22136b4564b6ed719da6f6f9dcbaf85e36a371204f20c20f89f1d2abb44e88
sha512
45c9b495042116cc8735ca77a8eeb74d729c49703f4fa956433eebd3f93ea3d2d069ac05e86c0d50395d92f93cb31218f4b9e5b8346a26866e180455053696d4
ripemd-160
50fc67448d034a65b21734cc7fd75bd53b1f3e05
Diameter
162029830
Circumference
509031723.5904
Area
2.061958090949E+16
Volume
2.2273247929573E+24
Surface area
8.247832363796E+16
Circumference
509031723.5904
Perimeter
324059660
Area
6563416452457225
Diagonal
114572391.5475
Surface area
39380498714743350
Volume
5.3173462600542E+23
Space diagonal
140321948.95087
Perimeter
243044745
Area
2.8420426917223E+15
Altitude
70160974.475437
Surface area
2.8420426917223E+15
Volume
6.2665526640021E+22
Height
38190797.182501