13813 is an odd 5-digits composite number following 13812
and preceding 13814 . In scientific notation, it is written as 1.3813 × 10^4.
The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors.
There are 13068 positive integers (up to 13813) that are relatively prime to 13813.
13813 has 4 divisors, whose sum is 14560
The reverse of 13813 is 31831
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 16
Digital Root 7
Name
thirteen thousand eight hundred thirteen
Scientific notation
1.3813 × 10^4
Engineering notation
1.3813 × 10^3
Prime Factorization
19 × 727
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
13813
Product of the distinct prime numbers
The prime factorization of 13813 is 19 × 727.
Since it has a total of 2 prime factors.
4 , 3 , 31 , 37 , 716 , 534 , 6564 , 392 , 62308 , 95597 , 336661 , 401978 , 2204577 , 5499831 , 93595282 , 26118177 , 808477013 , 365345652 , 3299730270 , 7978742170
n×2
27626
n×3
41439
n×4
55252
n×5
69065
n÷2
6906.5
n÷3
4604.3333333333
n÷3
3453.25
n÷5
2762.6
n2
190798969
n3
2635506158797
n4
36404246571462961
n5
5.0285185789162E+20
2 √n
117.52871989433
3 √n
23.993632570068
4 √n
10.841066363339
5 √n
6.730659220193
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
-13812
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 13813 can be divided by 4 positive divisors.
The sum of these divisors (counting 13813) is 1, the average is 0.25.
Base
System
Value
2
Binary
11010111110101
3
Ternary
200221121
4
Quaternary
3113311
5
Quinary
420223
6
Senary
143541
8
Octal
32765
10
Decimal
13813
12
Duodecimal
7bb1
16
Hexadecimal
35f5
20
Vigesimal
1ead
36
Base36
anp
md5
d8ffe0099bb7e2c98f8e6e5c37baffa2
sha1
82c68c7c6d45078eaf1105454118fe8dc6549c80
sha256
c08d1b2dc3aea715edba24203d8049490d4d45938375e8a02bce0ebc76272cf8
sha512
016d301328242816436c4f25d249a25a39f94d44f7584216b26e07d9d4b601362558fdfed9ac04a89916abb76bd20036801a550dd0e7cca130d93c6136e401fd
ripemd-160
bfa2d294a9e15e5915b8d66fcbdfd608452db5a2
Diameter
27626
Circumference
86789.638648072
Area
599412639.32291
Volume
11039582382623
Surface area
2397650557.2916
Circumference
86789.638648072
Perimeter
55252
Area
190798969
Diagonal
19534.53193706
Surface area
1144793814
Volume
2635506158797
Space diagonal
23924.817804949
Perimeter
41439
Area
82618377.08494
Altitude
11962.408902474
Surface area
82618377.08494
Volume
310597379457.38
Height
6511.5106456865