81594842 is an even 8-digits composite number following 81594841
and preceding 81594843 . In scientific notation, it is written as 8.1594842 × 10^7.
The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors.
There are 34023888 positive integers (up to 81594842) that are relatively prime to 81594842.
81594842 has 16 divisors, whose sum is 143658240
The reverse of 81594842 is 24849518
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-one million five hundred ninety-four thousand eight hundred forty-two
Scientific notation
8.1594842 × 10^7
Engineering notation
8.1594842 × 10^6
Prime Factorization
2 × 7 × 37 × 157519
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81594842
Product of the distinct prime numbers
The prime factorization of 81594842 is 2 × 7 × 37 × 157519.
Since it has a total of 4 prime factors.
8 , 7 , 5 , 18 , 908 , 67 , 6036 , 7568 , 43676 , 43518 , 416499 , 879964 , 1169480 , 1949874 , 63341871 , 96717586 , 456971358 , 778163750 , 3955670414 , 5349827114
n×2
163189684
n×3
244784526
n×4
326379368
n×5
407974210
n÷2
40797421
n÷3
27198280.666667
n÷3
20398710.5
n÷5
16318968.4
n2
6657718241004964
n3
5.4323546795532E+23
n4
4.432521217661E+31
n5
3.616708684167E+39
2 √n
9032.9863278984
3 √n
433.73143783012
4 √n
95.0420240099
5 √n
38.223683921202
1 , 2 , 7 , 14 , 37 , 74 , 259 , 518 , 157519 , 315038 , 1102633 , 2205266 , 5828203 , 11656406 , 40797421 , 81594842
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
-81594841
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 81594842 can be divided by 16 positive divisors.
The sum of these divisors (counting 81594842) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111010000100111011010
3
Ternary
12200112110002012
4
Quaternary
10313100213122
5
Quinary
131342013332
6
Senary
12032505522
8
Octal
467204732
10
Decimal
81594842
12
Duodecimal
233ab2a2
16
Hexadecimal
4dd09da
20
Vigesimal
159j722
36
Base36
1ckuze
md5
511d5ab53018b6dad43f4df859cec872
sha1
9156f675af3d52306dca954abfb6a7d05ec73052
sha256
97da0f4643dbf76675d3c8b759b55a38c028b2519713e9a6f7406733d26523b1
sha512
de904b60cc941019c912daa0a6e6d3099353292cd987c8872626ed06f4f7e5092eb5dcffb8572d3849fab89ad40884d0425a17180c9158003199a06c0f4f37b4
ripemd-160
261b513039dee269430956f7eca4a135903b6853
Diameter
163189684
Circumference
512675512.39604
Area
2.0915838715612E+16
Volume
2.2754994070638E+24
Surface area
8.3663354862448E+16
Circumference
512675512.39604
Perimeter
326379368
Area
6657718241004964
Diagonal
115392532.17609
Surface area
39946309446029784
Volume
5.4323546795532E+23
Space diagonal
141326411.97955
Perimeter
244784526
Area
2.8828765639747E+15
Altitude
70663205.989777
Surface area
2.8828765639747E+15
Volume
6.4020913862042E+22
Height
38464177.39203