81810010 is an even 8-digits composite number following 81810009
and preceding 81810011 . In scientific notation, it is written as 8.1810010 × 10^7.
The sum of its digits is 19. It has a total of 4 prime factors and 16 positive divisors.
There are 31001616 positive integers (up to 81810010) that are relatively prime to 81810010.
81810010 has 16 divisors, whose sum is 155008800
The reverse of 81810010 is 01001818
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
eighty-one million eight hundred ten thousand ten
Scientific notation
8.1810010 × 10^7
Engineering notation
8.1810010 × 10^6
Prime Factorization
2 × 5 × 19 × 430579
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81810010
Product of the distinct prime numbers
The prime factorization of 81810010 is 2 × 5 × 19 × 430579.
Since it has a total of 4 prime factors.
6 , 3 , 22 , 90 , 171 , 543 , 8716 , 1193 , 98015 , 61769 , 837227 , 423721 , 4211547 , 1786976 , 24279414 , 67928864 , 402843780 , 568548906 , 425479844 , 3068943588
n×2
163620020
n×3
245430030
n×4
327240040
n×5
409050050
n÷2
40905005
n÷3
27270003.333333
n÷3
20452502.5
n÷5
16362002
n2
6692877736200100
n3
5.4754439452731E+23
n4
4.4794612391723E+31
n5
3.664647687713E+39
2 √n
9044.8886118072
3 √n
434.11235738335
4 √n
95.104619297946
5 √n
38.24382208633
1 , 2 , 5 , 10 , 19 , 38 , 95 , 190 , 430579 , 861158 , 2152895 , 4305790 , 8181001 , 16362002 , 40905005 , 81810010
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
-81810009
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 81810010 can be divided by 16 positive divisors.
The sum of these divisors (counting 81810010) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111000000101001001011010
3
Ternary
12200221101020101
4
Quaternary
10320011021122
5
Quinary
131420410020
6
Senary
12041250014
8
Octal
470051132
10
Decimal
81810010
12
Duodecimal
2349390a
16
Hexadecimal
4e0525a
20
Vigesimal
15b650a
36
Base36
1cph0a
md5
462042aa95495e8f36d48a3f3cce5d44
sha1
fed57fd83a0369521b0350752ad45a8db58588f1
sha256
d692db0e4ec65c601c482be36f4c45986bbf0a0a88e832de8ae0d237dd0fadf9
sha512
b76d052964ea7c8feb922b284581faea53d968b4289787c575978282f7bfc26cdfb849e1177fd4582a8a97018e4a4b03c89fc52792a4e04c6883ed7c0e816df7
ripemd-160
3db34a858000de1312d9198fcb4d7ab483254b86
Diameter
163620020
Circumference
514027452.81222
Area
2.1026295527421E+16
Volume
2.2935485964817E+24
Surface area
8.4105182109684E+16
Circumference
514027452.81222
Perimeter
327240040
Area
6692877736200100
Diagonal
115696825.67988
Surface area
40157266417200600
Volume
5.4754439452731E+23
Space diagonal
141699093.88772
Perimeter
245430030
Area
2.8981010719863E+15
Altitude
70849546.943859
Surface area
2.8981010719863E+15
Volume
6.452872572849E+22
Height
38565608.55996