81042011 is an odd 8-digits composite number following 81042010
and preceding 81042012 . In scientific notation, it is written as 8.1042011 × 10^7.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 76776624 positive integers (up to 81042011) that are relatively prime to 81042011.
81042011 has 4 divisors, whose sum is 85307400
The reverse of 81042011 is 11024018
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
eighty-one million forty-two thousand eleven
Scientific notation
8.1042011 × 10^7
Engineering notation
8.1042011 × 10^6
Prime Factorization
19 × 4265369
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81042011
Product of the distinct prime numbers
The prime factorization of 81042011 is 19 × 4265369.
Since it has a total of 2 prime factors.
7 , 4 , 43 , 4 , 285 , 734 , 9148 , 4087 , 74576 , 37931 , 524509 , 888557 , 9415948 , 2917927 , 65780748 , 87180377 , 324816943 , 393547712 , 1771877263 , 7350509513
n×2
162084022
n×3
243126033
n×4
324168044
n×5
405210055
n÷2
40521005.5
n÷3
27014003.666667
n÷3
20260502.75
n÷5
16208402.2
n2
6567807546924121
n3
5.3226833146371E+23
n4
4.3136095973433E+31
n5
3.495835964376E+39
2 √n
9002.3336418953
3 √n
432.74966106082
4 √n
94.880628380588
5 √n
38.171747452807
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
-81042010
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 81042011 can be divided by 4 positive divisors.
The sum of these divisors (counting 81042011) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101001001101001011011
3
Ternary
12122111100201222
4
Quaternary
10311021221123
5
Quinary
131221321021
6
Senary
12013002255
8
Octal
465115133
10
Decimal
81042011
12
Duodecimal
2318338b
16
Hexadecimal
4d49a5b
20
Vigesimal
156a50b
36
Base36
1c90ez
md5
865b8526bbf99f73d54d728a79d8c89e
sha1
e9b6d045bdd1ed00c5c0b9faafc4936c18ad8504
sha256
f3573c5ab52a4c247dcbe97d153d4305b5fc662833624e701cc53284b89a43e2
sha512
536a7ab17c534e6ca366f630ace72fd6703f279b097983d3932ef81e79ac3738ed1bce25f867170eb820741fb544ea2c9359da8ed55501873f32951c08b0c472
ripemd-160
3a97d62cd393aa6b7a5cc2452f76b4038cd47bf6
Diameter
162084022
Circumference
509201972.77949
Area
2.0633375939608E+16
Volume
2.2295603731532E+24
Surface area
8.2533503758434E+16
Circumference
509201972.77949
Perimeter
324168044
Area
6567807546924121
Diagonal
114610711.07819
Surface area
39406845281544726
Volume
5.3226833146371E+23
Space diagonal
140368880.59956
Perimeter
243126033
Area
2.8439440914017E+15
Altitude
70184440.299778
Surface area
2.8439440914017E+15
Volume
6.2728424431473E+22
Height
38203570.359397