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

6561 (number)

6561 is an odd 4-digits composite number following 6560 and preceding 6562. In scientific notation, it is written as 6.561 × 10^3. The sum of its digits is 18. It has a total of 6 prime factors and 9 positive divisors. There are 4374 positive integers (up to 6561) that are relatively prime to 6561.

Interesting facts

6561 has 9 divisors, whose sum is 9841
The reverse of 6561 is 1656
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 4
Sum of Digits 18
Digital Root 9

Name

Name	six thousand five hundred sixty-one

Notation

Scientific notation	6.561 × 10^3
Engineering notation	6.561 × 10^3

Prime Factorization of 6561

Prime Factorization 9 × 3 × 3 × 9 × 3 × 3

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	6	Total number of prime factors
rad	Radical	27	Product of the distinct prime numbers

The prime factorization of 6561 is 9 × 3 × 3 × 9 × 3 × 3. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 8, 35, 10, 870, 253, 7075, 3497, 91818, 38406, 533406, 847613, 9569167, 7146905, 62031960, 39073982, 90038248, 989353154, 7644991977, 4259608924

Basic calculations (n = 6561)

Multiplication

n×y

n×2	13122
n×3	19683
n×4	26244
n×5	32805

Division

n÷y

n÷2	3280.5
n÷3	2187
n÷3	1640.25
n÷5	1312.2

Exponentiation

n^y

n²	43046721
n³	282429536481
n⁴	1853020188851841
n⁵	1.2157665459057E+19

Nth Root

^y√n

²√n	81
³√n	18.720754407467
⁴√n	9
⁵√n	5.7995461347953

Divisors of 6561

1, 3, 9, 27, 81, 243, 729, 2187, 6561

9 divisors

τ	Total Divisors	9	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-6560	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.11111111111111	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	9	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 6561 can be divided by 9 positive divisors. The sum of these divisors (counting 6561) is 1, the average is 0.11111111111111.

Base conversion 6561

Base	System	Value
2	Binary	1100110100001
3	Ternary	100000000
4	Quaternary	1212201
5	Quinary	202221
6	Senary	50213
8	Octal	14641
10	Decimal	6561
12	Duodecimal	3969
16	Hexadecimal	19a1
20	Vigesimal	g81
36	Base36	529

Cryptographic Hash Functions

md5	118bd558033a1016fcc82560c65cca5f
sha1	dac59dd31398ef95d7c5332777cc08cd770d5f5f
sha256	fed1a952001c5c6f4a47c1839e311ab8d70de0fde569ec67148e7c920413414f
sha512	5e5e16e06e4a0de0fa44be14c98e79269565cfc4aae786a0aeb69f6d34a0f3f8c929305b6f75be7a671f29e67e1947ae12551d2cb1ebd0bec9f6bccbb810b141
ripemd-160	cebed43fb556164130bcb005163ee99409a7f205

6561 as geometric shapes

Circle

Radius = n

Diameter	13122
Circumference	41223.978800405
Area	135235262.45473

Sphere

Radius = n

Volume	1183038075954
Surface area	540941049.81892
Circumference	41223.978800405

Square

Length = n

Perimeter	26244
Area	43046721
Diagonal	9278.6551827299

Cube

Length = n

Surface area	258280326
Volume	282429536481
Space diagonal	11363.985348459

Equilateral Triangle

Length = n

Perimeter	19683
Area	18639776.967811
Altitude	5681.9926742297

Triangular Pyramid

Length = n

Surface area	18639776.967811
Volume	33284640075.515
Height	3092.88506091