81015093 is an odd 8-digits composite number following 81015092
and preceding 81015094 . In scientific notation, it is written as 8.1015093 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 53903088 positive integers (up to 81015093) that are relatively prime to 81015093.
81015093 has 16 divisors, whose sum is 120260160
The reverse of 81015093 is 39051018
Previous prime number is 557
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
eighty-one million fifteen thousand ninety-three
Scientific notation
8.1015093 × 10^7
Engineering notation
8.1015093 × 10^6
Prime Factorization
9 × 3 × 557 × 5387
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81015093
Product of the distinct prime numbers
The prime factorization of 81015093 is 9 × 3 × 557 × 5387.
Since it has a total of 4 prime factors.
1 , 3 , 19 , 54 , 46 , 121 , 5084 , 4985 , 48 , 31218 , 633881 , 754403 , 4872549 , 1107749 , 39711569 , 53091402 , 3694153 , 943188971 , 8355994427 , 9585119045
n×2
162030186
n×3
243045279
n×4
324060372
n×5
405075465
n÷2
40507546.5
n÷3
27005031
n÷3
20253773.25
n÷5
16203018.6
n2
6563445293798649
n3
5.3173813087751E+23
n4
4.3078814124688E+31
n5
3.4900341326413E+39
2 √n
9000.8384609435
3 √n
432.70174334022
4 √n
94.872748779318
5 √n
38.169211376452
1 , 3 , 9 , 27 , 557 , 1671 , 5013 , 5387 , 15039 , 16161 , 48483 , 145449 , 3000559 , 9001677 , 27005031 , 81015093
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81015092
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81015093 can be divided by 16 positive divisors.
The sum of these divisors (counting 81015093) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101000011000100110101
3
Ternary
12122102222211000
4
Quaternary
10311003010311
5
Quinary
131214440333
6
Senary
12012233513
8
Octal
465030465
10
Decimal
81015093
12
Duodecimal
2316b899
16
Hexadecimal
4d43135
20
Vigesimal
1566hed
36
Base36
1c8fn9
md5
43722c44ed308518b34642780cf21e6c
sha1
a5799376f5997f160bbfcd159b3427ba4851c932
sha256
d7af51fe1759b561dd846a63a17b24e814ee72058f36384395527879129457a1
sha512
1bd540227641ef4f649fc14fe4fbea9ec5832f60acc77b2b3730164ef67e9d2382631a56bf21448335584e010186b1a93e9e78004ca7e035e34b70ba2a835e11
ripemd-160
4108fed148187979484f16b0ce23df075aed7e13
Diameter
162030186
Circumference
509032841.99739
Area
2.0619671517236E+16
Volume
2.2273394741311E+24
Surface area
8.2478686068945E+16
Circumference
509032841.99739
Perimeter
324060372
Area
6563445293798649
Diagonal
114572643.27752
Surface area
39380671762791894
Volume
5.3173813087751E+23
Space diagonal
140322257.25592
Perimeter
243045279
Area
2.8420551803895E+15
Altitude
70161128.627959
Surface area
2.8420551803895E+15
Volume
6.2665939693158E+22
Height
38190881.092506