13821 (number)

13821 is an odd 5-digits composite number following 13820 and preceding 13822. In scientific notation, it is written as 1.3821 × 10^4. The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors. There are 8640 positive integers (up to 13821) that are relatively prime to 13821.

Interesting facts

Basic properties

Name

Name thirteen thousand eight hundred twenty-one

Notation

Scientific notation 1.3821 × 10^4
Engineering notation 1.3821 × 10^3

Prime Factorization of 13821

Prime Factorization 3 × 17 × 271

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 13821
Product of the distinct prime numbers

The prime factorization of 13821 is 3 × 17 × 271. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 2, 99, 37, 861, 773, 3174, 2129, 12111, 7812, 363672, 410517, 6287071, 2423787, 11430354, 68530262, 686152553, 917511542, 5631329165, 2132480488

Basic calculations (n = 13821)

Multiplication

n×y
n×2 27642
n×3 41463
n×4 55284
n×5 69105

Division

n÷y
n÷2 6910.5
n÷3 4607
n÷3 3455.25
n÷5 2764.2

Exponentiation

ny
n2 191020041
n3 2640087986661
n4 36488656063641681
n5 5.0430971545559E+20

Nth Root

y√n
2√n 117.56274920229
3√n 23.998263763287
4√n 10.842635712883
5√n 6.7314386714923

Divisors of 13821

1, 3, 17, 51, 271, 813, 4607, 13821

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 -13820
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 13821 can be divided by 8 positive divisors. The sum of these divisors (counting 13821) is 1, the average is 0.125.

Base conversion 13821

Base System Value
2 Binary 11010111111101
3 Ternary 200221220
4 Quaternary 3113331
5 Quinary 420241
6 Senary 143553
8 Octal 32775
10 Decimal 13821
12 Duodecimal 7bb9
16 Hexadecimal 35fd
20 Vigesimal 1eb1
36 Base36 anx

Cryptographic Hash Functions

md5 4ef5a564be51e55d5a1b86168a99f528
sha1 6899fcbf30b798244d8f59d4c95233c84fcc7f56
sha256 620cd39a68f37175a6182d248609e7890ee0ce2b4cbc14544f1531dc301be93e
sha512 7ca183f29d6d8d8c236ee0c6f3e7c46c823a04ec57176d3071e8b173ed771357f08491cf7d4fb071266882350673a1e5c9531b257a691e54f62e10f266304442
ripemd-160 d0077372f0e59d6a32a42855ca211759723120d6

13821 as geometric shapes

Circle

Radius = n
Diameter 27642
Circumference 86839.904130529
Area 600107157.49402

Sphere

Radius = n
Volume 11058774698300
Surface area 2400428629.9761
Circumference 86839.904130529

Square

Length = n
Perimeter 55284
Area 191020041
Diagonal 19545.845645559

Cube

Length = n
Surface area 1146120246
Volume 2640087986661
Space diagonal 23938.674211409

Equilateral Triangle

Length = n
Perimeter 41463
Area 82714104.068973
Altitude 11969.337105705

Triangular Pyramid

Length = n
Surface area 82714104.068973
Volume 311137353049.52
Height 6515.2818818528