Math Question: How many different ways can the number 8661 be rearranged using all its digits?

To find the number of different ways the number 8661 can be rearranged, we need to calculate the number of permutations of its digits. The number 8661 has 4 digits, with one digit repeating twice. Therefore, the total number of permutations is given by 4!/2!, where 4! (read as 4 factorial) is the product of all positive integers up to 4 (4 × 3 × 2 × 1), and 2! is the product of positive integers up to 2 (2 × 1). Evaluating the expression, we get 4! / 2! = (4 × 3 × 2 × 1) / (2 × 1) = 24 / 2 = 12. Thus, there are 12 different ways to rearrange the number 8661 using all its digits.

Math question: What is the smallest positive multiple of 8661 that is a perfect square?

To find the answer, let's consider the prime factorization of 8661: 8661 = 3 * 2887. Since the factors are distinct, we need the powers of each prime factor to be even for the multiple to be a perfect square. The primes in the factorization are 3 and 2887. To make the powers even, we multiply 3 by another 3, and keep the prime 2887 unchanged. Thus, the smallest positive multiple of 8661 that is a perfect square is 8661 * 3^2 * 2887 = 69975714. Therefore, 69975714 is the answer.

Question: What is the greatest common divisor of 8661 and the sum of its digits?

To find the greatest common divisor (GCD) of 8661 and the sum of its digits, we first need to calculate the sum of its digits. The sum of the digits of 8661 is 8 + 6 + 6 + 1 = 21. Now, let's find the GCD of 8661 and 21. By using the Euclidean algorithm, we divide 8661 by 21, resulting in a quotient of 412 and a remainder of 9. Then, we divide 21 by 9, having a quotient of 2 and a remainder of 3. Finally, we divide 9 by 3, which gives us a quotient of 3 and no remainder. Therefore, the GCD of 8661 and 21 is 3.

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

8661 (number)

8661 is an odd 4-digits composite number following 8660 and preceding 8662. In scientific notation, it is written as 8.661 × 10^3. The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors. There are 5772 positive integers (up to 8661) that are relatively prime to 8661.

Interesting facts

8661 has 4 divisors, whose sum is 11552
The reverse of 8661 is 1668
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 4
Sum of Digits 21
Digital Root 3

Name

Name	eight thousand six hundred sixty-one

Notation

Scientific notation	8.661 × 10^3
Engineering notation	8.661 × 10^3

Prime Factorization of 8661

Prime Factorization 3 × 2887

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	8661	Product of the distinct prime numbers

The prime factorization of 8661 is 3 × 2887. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 8, 79, 84, 389, 571, 9519, 9705, 88456, 82236, 34224, 337427, 2037824, 8768583, 8658501, 6993793, 221968771, 199615806, 1565251163, 3033981248

Basic calculations (n = 8661)

Multiplication

n×y

n×2	17322
n×3	25983
n×4	34644
n×5	43305

Division

n÷y

n÷2	4330.5
n÷3	2887
n÷3	2165.25
n÷5	1732.2

Exponentiation

n^y

n²	75012921
n³	649686908781
n⁴	5626938316952241
n⁵	4.8734912763123E+19

Nth Root

^y√n

²√n	93.06449376642
³√n	20.536322675287
⁴√n	9.6469940274896
⁵√n	6.1307500128706

Divisors of 8661

1, 3, 2887, 8661

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	-8660	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 8661 can be divided by 4 positive divisors. The sum of these divisors (counting 8661) is 1, the average is 0.25.

Base conversion 8661

Base	System	Value
2	Binary	10000111010101
3	Ternary	102212210
4	Quaternary	2013111
5	Quinary	234121
6	Senary	104033
8	Octal	20725
10	Decimal	8661
12	Duodecimal	5019
16	Hexadecimal	21d5
20	Vigesimal	11d1
36	Base36	6ol

Cryptographic Hash Functions

md5	919d2356219c1fa0c0bd560246532c72
sha1	264be81b3a6dee19eb8b68a894d7050d94edf1a6
sha256	ba64fc14ebb32368ef763cc24dfbabfaa7b23a3538bc0b8d3f1a690f281238df
sha512	2021c12151f7cfd37898f1fb398c6a1d12c1053e43641234fd42319d83b27a079aa376c7d8ae20a9bd8eed608c2216157502abd5fde6a2257c1c5b1f8b73c22c
ripemd-160	113061a4d84aece0d663fb78ae3508def839564a

8661 as geometric shapes

Circle

Radius = n

Diameter	17322
Circumference	54418.667945482
Area	235660041.53791

Sphere

Radius = n

Volume	2721402159679.8
Surface area	942640166.15165
Circumference	54418.667945482

Square

Length = n

Perimeter	34644
Area	75012921
Diagonal	12248.503663713

Cube

Length = n

Surface area	450077526
Volume	649686908781
Space diagonal	15001.292044354

Equilateral Triangle

Length = n

Perimeter	25983
Area	32481547.599038
Altitude	7500.646022177

Triangular Pyramid

Length = n

Surface area	32481547.599038
Volume	76566336474.529
Height	4082.8345545711