81001010 is an even 8-digits composite number following 81001009
and preceding 81001011 . In scientific notation, it is written as 8.1001010 × 10^7.
The sum of its digits is 11. It has a total of 4 prime factors and 16 positive divisors.
There are 32193408 positive integers (up to 81001010) that are relatively prime to 81001010.
81001010 has 16 divisors, whose sum is 146733336
The reverse of 81001010 is 01010018
Previous prime number is 157
Is Prime? no
Number parity even
Number length 8
Sum of Digits 11
Digital Root 2
Name
eighty-one million one thousand ten
Scientific notation
8.1001010 × 10^7
Engineering notation
8.1001010 × 10^6
Prime Factorization
2 × 5 × 157 × 51593
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81001010
Product of the distinct prime numbers
The prime factorization of 81001010 is 2 × 5 × 157 × 51593.
Since it has a total of 4 prime factors.
9 , 6 , 38 , 8 , 584 , 818 , 5673 , 3436 , 35751 , 96651 , 509099 , 709209 , 7550954 , 7278609 , 20441454 , 43706440 , 731970425 , 365550799 , 5587840092 , 1028522984
n×2
162002020
n×3
243003030
n×4
324004040
n×5
405005050
n÷2
40500505
n÷3
27000336.666667
n÷3
20250252.5
n÷5
16200202
n2
6561163621020100
n3
5.3146088007789E+23
n4
4.3048868061798E+31
n5
3.4870017923623E+39
2 √n
9000.0561109362
3 √n
432.67666944532
4 √n
94.86862553519
5 √n
38.167884279576
1 , 2 , 5 , 10 , 157 , 314 , 785 , 1570 , 51593 , 103186 , 257965 , 515930 , 8100101 , 16200202 , 40500505 , 81001010
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
-81001009
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 81001010 can be divided by 16 positive divisors.
The sum of these divisors (counting 81001010) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110100111111101000110010
3
Ternary
12122102021111102
4
Quaternary
10310333220302
5
Quinary
131214013020
6
Senary
12012044402
8
Octal
464775062
10
Decimal
81001010
12
Duodecimal
23163702
16
Hexadecimal
4d3fa32
20
Vigesimal
15652aa
36
Base36
1c84s2
md5
f729e6acf60ab5df48a84dffe1c65742
sha1
cd00614ce7a69f675deedbf90ccc169aac3a9932
sha256
6c61cbf141b70574e0474bd9ddb195c00f2c1e9734fdd4052c51cc7f2737802a
sha512
a0896cd1134921eca8feed0f667ab403b48f180d976bdca0902c7fedc90067304191fdae9238386424640279b6f45dd98d21c8bcb5aae250afd389e6ddf9c99d
ripemd-160
e47ad8620b72787fa7737a41dfd6e11876ac2c3d
Diameter
162002020
Circumference
508944355.89871
Area
2.0612503430797E+16
Volume
2.2261781286974E+24
Surface area
8.2450013723189E+16
Circumference
508944355.89871
Perimeter
324004040
Area
6561163621020100
Diagonal
114552726.90792
Surface area
39366981726120600
Volume
5.3146088007789E+23
Space diagonal
140297864.78439
Perimeter
243003030
Area
2.8410671870949E+15
Altitude
70148932.392197
Surface area
2.8410671870949E+15
Volume
6.2633265373074E+22
Height
38184242.30264