81015094 is an even 8-digits composite number following 81015093
and preceding 81015095 . In scientific notation, it is written as 8.1015094 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 40507546 positive integers (up to 81015094) that are relatively prime to 81015094.
81015094 has 4 divisors, whose sum is 121522644
The reverse of 81015094 is 49051018
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million fifteen thousand ninety-four
Scientific notation
8.1015094 × 10^7
Engineering notation
8.1015094 × 10^6
Prime Factorization
2 × 40507547
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81015094
Product of the distinct prime numbers
The prime factorization of 81015094 is 2 × 40507547.
Since it has a total of 2 prime factors.
2 , 1 , 1 , 27 , 59 , 957 , 5604 , 36 , 73891 , 56497 , 812749 , 174517 , 3958143 , 2460376 , 27589251 , 31355529 , 696768703 , 216265732 , 2709136724 , 6120765389
n×2
162030188
n×3
243045282
n×4
324060376
n×5
405075470
n÷2
40507547
n÷3
27005031.333333
n÷3
20253773.5
n÷5
16203018.8
n2
6563445455828836
n3
5.3173815056785E+23
n4
4.307881625164E+31
n5
3.4900343480354E+39
2 √n
9000.8385164939
3 √n
432.70174512055
4 √n
94.87274907208
5 √n
38.169211470679
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
-81015093
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 81015094 can be divided by 4 positive divisors.
The sum of these divisors (counting 81015094) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101000011000100110110
3
Ternary
12122102222211001
4
Quaternary
10311003010312
5
Quinary
131214440334
6
Senary
12012233514
8
Octal
465030466
10
Decimal
81015094
12
Duodecimal
2316b89a
16
Hexadecimal
4d43136
20
Vigesimal
1566hee
36
Base36
1c8fna
md5
211159ac219899f4edd7c9f16cf01622
sha1
714f2088b5cb5e155d39ee8104e81ee1b86855fc
sha256
f19594c73f9234992fe7d5419d04c64f036a104b597f1562d70928b191a12f65
sha512
cf0c6fe95e46c122991357112a6c4fa59ffc04f2f69417857aec3864a42c7d90f1ca1587618617f73ac499913934e4b142ddc6d70cb62f8d1f1f0e1f871bd24e
ripemd-160
6cb9f345e90706e05f1b9d85781b2d2e3eab28dc
Diameter
162030188
Circumference
509032848.28057
Area
2.0619672026269E+16
Volume
2.2273395566098E+24
Surface area
8.2478688105077E+16
Circumference
509032848.28057
Perimeter
324060376
Area
6563445455828836
Diagonal
114572644.69173
Surface area
39380672734973016
Volume
5.3173815056785E+23
Space diagonal
140322258.98797
Perimeter
243045282
Area
2.8420552505507E+15
Altitude
70161129.493984
Surface area
2.8420552505507E+15
Volume
6.2665942013686E+22
Height
38190881.56391