Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

21643 (number)

21643 is an odd 5-digits composite number following 21642 and preceding 21644. In scientific notation, it is written as 2.1643 × 10^4. The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors. There are 20680 positive integers (up to 21643) that are relatively prime to 21643.

Interesting facts

21643 has 4 divisors, whose sum is 22608
The reverse of 21643 is 34612
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 5
Sum of Digits 16
Digital Root 7

Name

Name	twenty-one thousand six hundred forty-three

Notation

Scientific notation	2.1643 × 10^4
Engineering notation	2.1643 × 10^3

Prime Factorization of 21643

Prime Factorization 23 × 941

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21643	Product of the distinct prime numbers

The prime factorization of 21643 is 23 × 941. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 6, 44, 18, 326, 582, 4612, 3938, 44030, 20654, 851616, 806664, 4428113, 4216281, 95586661, 94446675, 49625469, 918639698, 4346284106, 2965845932

Basic calculations (n = 21643)

Multiplication

n×y

n×2	43286
n×3	64929
n×4	86572
n×5	108215

Division

n÷y

n÷2	10821.5
n÷3	7214.3333333333
n÷3	5410.75
n÷5	4328.6

Exponentiation

n^y

n²	468419449
n³	10138002134707
n⁴	219416780201463601
n⁵	4.7488373739003E+21

Nth Root

^y√n

²√n	147.11560080427
³√n	27.868001151979
⁴√n	12.129122012919
⁵√n	7.3631473551048

Divisors of 21643

1, 23, 941, 21643

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	-21642	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 21643 can be divided by 4 positive divisors. The sum of these divisors (counting 21643) is 1, the average is 0.25.

Base conversion 21643

Base	System	Value
2	Binary	101010010001011
3	Ternary	1002200121
4	Quaternary	11102023
5	Quinary	1143033
6	Senary	244111
8	Octal	52213
10	Decimal	21643
12	Duodecimal	10637
16	Hexadecimal	548b
20	Vigesimal	2e23
36	Base36	gp7

Cryptographic Hash Functions

md5	308a4f1079d3c50653dfeca80d85ea6a
sha1	a1b62ca6aa745773a58bc727d027a73dc3412276
sha256	ab89c903b78ef5e63591fd1e4a563a5127d3d25481dc4d8aced193a8ed2c1e12
sha512	e23e743ab4d20f20eddaa4e2473d9cfaf745e0d51dfc37146220473e5d06ab84abb4c31488c148976f0e96be689497bae094fe5f9afa33636e6a3ae8565896e0
ripemd-160	8a832f87c7533bffc4f7aad71892ea0d36d437b1

21643 as geometric shapes

Circle

Radius = n

Diameter	43286
Circumference	135986.97960329
Area	1471583099.777

Sphere

Radius = n

Volume	42465964037964
Surface area	5886332399.1079
Circumference	135986.97960329

Square

Length = n

Perimeter	86572
Area	468419449
Diagonal	30607.824130441

Cube

Length = n

Surface area	2810516694
Volume	10138002134707
Space diagonal	37486.775628213

Equilateral Triangle

Length = n

Perimeter	64929
Area	202831571.23035
Altitude	18743.387814107

Triangular Pyramid

Length = n

Surface area	202831571.23035
Volume	1194775009522.5
Height	10202.60804348