81396 is an even 5-digits composite number following 81395
and preceding 81397 . In scientific notation, it is written as 8.1396 × 10^4.
The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors.
There are 20736 positive integers (up to 81396) that are relatively prime to 81396.
81396 has 24 divisors, whose sum is 161280
The reverse of 81396 is 69318
Previous prime number is 19
Is Prime? no
Number parity even
Number length 5
Sum of Digits 27
Digital Root 9
Name
eighty-one thousand three hundred ninety-six
Scientific notation
8.1396 × 10^4
Engineering notation
8.1396 × 10^3
Prime Factorization
2 × 2 × 63 × 19 × 17
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
40698
Product of the distinct prime numbers
The prime factorization of 81396 is 2 × 2 × 63 × 19 × 17.
Since it has a total of 5 prime factors.
10 , 3 , 40 , 42 , 229 , 912 , 5119 , 871 , 57782 , 87430 , 440065 , 718468 , 4092607 , 7497351 , 8318803 , 7646525 , 128014961 , 693990538 , 3609839205 , 3895009486
n×2
162792
n×3
244188
n×4
325584
n×5
406980
n÷2
40698
n÷3
27132
n÷3
20349
n÷5
16279.2
n2
6625308816
n3
539273636387136
n4
4.3894716907367E+19
n5
3.5728543773921E+24
2 √n
285.29984227125
3 √n
43.337882494139
4 √n
16.890821243245
5 √n
9.5966711405458
1 , 2 , 4 , 17 , 19 , 34 , 38 , 63 , 68 , 76 , 126 , 252 , 323 , 646 , 1071 , 1197 , 1292 , 2142 , 2394 , 4284 , 4788 , 20349 , 40698 , 81396
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81395
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81396 can be divided by 24 positive divisors.
The sum of these divisors (counting 81396) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
10011110111110100
3
Ternary
11010122200
4
Quaternary
103313310
5
Quinary
10101041
6
Senary
1424500
8
Octal
236764
10
Decimal
81396
12
Duodecimal
3b130
16
Hexadecimal
13df4
20
Vigesimal
a39g
36
Base36
1qt0
md5
7acccf55c279f4d0a270e729112f0b2f
sha1
ffc095a18bbbf35713425c1b02819d157f1b2011
sha256
2b462af2afcf973ba98cf784f41f1a8fb94e3a9b3d32281b99df61bf2826d8b9
sha512
a9e48e2024b869eb5a41cb8f929a3301e40e51b5ae46f3913fbedda2864a074ee22626d0093c341b3e864edfa9495aeeeb74a042d08872d54a4f325a32d05b46
ripemd-160
f8109a9a03571c1122fcf84c393cb34b57101003
Diameter
162792
Circumference
511426.15126319
Area
20814021504.109
Volume
2.258904125798E+15
Surface area
83256086016.437
Circumference
511426.15126319
Perimeter
325584
Area
6625308816
Diagonal
115111.32712292
Surface area
39751852896
Volume
539273636387136
Space diagonal
140982.00753288
Perimeter
244188
Area
2868842871.2865
Altitude
70491.003766438
Surface area
2868842871.2865
Volume
63554007534079
Height
38370.442374307