81094791 is an odd 8-digits composite number following 81094790
and preceding 81094792 . In scientific notation, it is written as 8.1094791 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 52319160 positive integers (up to 81094791) that are relatively prime to 81094791.
81094791 has 8 divisors, whose sum is 111614464
The reverse of 81094791 is 19749018
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighty-one million ninety-four thousand seven hundred ninety-one
Scientific notation
8.1094791 × 10^7
Engineering notation
8.1094791 × 10^6
Prime Factorization
3 × 31 × 871987
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81094791
Product of the distinct prime numbers
The prime factorization of 81094791 is 3 × 31 × 871987.
Since it has a total of 3 prime factors.
3 , 5 , 65 , 68 , 931 , 985 , 690 , 4593 , 82449 , 85831 , 96646 , 692985 , 483157 , 5298429 , 36430295 , 15205936 , 764214305 , 483840321 , 3264667914 , 1074988988
n×2
162189582
n×3
243284373
n×4
324379164
n×5
405473955
n÷2
40547395.5
n÷3
27031597
n÷3
20273697.75
n÷5
16218958.2
n2
6576365127333681
n3
5.3330895554081E+23
n4
4.3248578288011E+31
n5
3.5072344173134E+39
2 √n
9005.2646268724
3 √n
432.84358588736
4 √n
94.896072768437
5 √n
38.176718159151
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81094790
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81094791 can be divided by 8 positive divisors.
The sum of these divisors (counting 81094791) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101010110100010000111
3
Ternary
12122121001010210
4
Quaternary
10311112202013
5
Quinary
131230013131
6
Senary
12014050503
8
Octal
465264207
10
Decimal
81094791
12
Duodecimal
231a9a33
16
Hexadecimal
4d56887
20
Vigesimal
156ggjb
36
Base36
1ca553
md5
6965a7a042de3bd574388f48ebd9458b
sha1
4d1b5d26b154302d4117f16a4c52725cb45ce418
sha256
dff6b69ac1a88b347f38ac9f5b5be6f41ee0cfd3fb98baf1b4255490d0d9679f
sha512
e65bc2a8fdace6b268502c0c737994f2505687ff6b1bf77102de03e05f609d92c480f9384c7cccff57b17e73a365da569cffdbcb93230886159897778a58f460
ripemd-160
9fee81ec8b875421bfd5728925654331e7b0f038
Diameter
162189582
Circumference
509533599.3
Area
2.0660260371356E+16
Volume
2.2339193290942E+24
Surface area
8.2641041485422E+16
Circumference
509533599.3
Perimeter
324379164
Area
6576365127333681
Diagonal
114685353.27001
Surface area
39458190764002086
Volume
5.3330895554081E+23
Space diagonal
140460298.24118
Perimeter
243284373
Area
2.8476496324165E+15
Altitude
70230149.12059
Surface area
2.8476496324165E+15
Volume
6.2851063155071E+22
Height
38228451.090004