561 (number)

561 is an odd 3-digits composite number following 560 and preceding 562. In scientific notation, it is written as 5.61 × 10^2. The sum of its digits is 12. It has a total of 3 prime factors and 8 positive divisors. There are 320 positive integers (up to 561) that are relatively prime to 561.

Interesting facts

Basic properties

Name

Name five hundred sixty-one

Notation

Scientific notation 5.61 × 10^2
Engineering notation 5.61 × 10^0

Prime Factorization of 561

Prime Factorization 3 × 11 × 17

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 561
Product of the distinct prime numbers

The prime factorization of 561 is 3 × 11 × 17. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 561)

Multiplication

n×y
n×2 1122
n×3 1683
n×4 2244
n×5 2805

Division

n÷y
n÷2 280.5
n÷3 187
n÷3 140.25
n÷5 112.2

Exponentiation

ny
n2 314721
n3 176558481
n4 99049307841
n5 55566661698801

Nth Root

y√n
2√n 23.685438564654
3√n 8.2474739741226
4√n 4.8667688012329
5√n 3.5464396371137

Divisors of 561

1, 3, 11, 17, 33, 51, 187, 561

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 -560
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 561 can be divided by 8 positive divisors. The sum of these divisors (counting 561) is 1, the average is 0.125.

Base conversion 561

Base System Value
2 Binary 1000110001
3 Ternary 202210
4 Quaternary 20301
5 Quinary 4221
6 Senary 2333
8 Octal 1061
10 Decimal 561
12 Duodecimal 3a9
16 Hexadecimal 231
20 Vigesimal 181
36 Base36 fl

Cryptographic Hash Functions

md5 58ae749f25eded36f486bc85feb3f0ab
sha1 77c8184f671aa0397dd897541ed5ec0a8be0380b
sha256 04edd1d7736883194af3ddb232c337e53d17bc93cfd2140c4f4c4e0d966798b1
sha512 06ee59456a6a1e2f31848ab7b9dc3f02ea09459f69821447d3061685b79eb7fb8f1fd57adb5e22a4734bbeba5113162ee91c0fdfb691c3991e493e215f509379
ripemd-160 c18b332a2a51b0316c8ac202893a4a6f2807e943

561 as geometric shapes

Circle

Radius = n
Diameter 1122
Circumference 3524.8669573277
Area 988725.18153043

Sphere

Radius = n
Volume 739566435.78476
Surface area 3954900.7261217
Circumference 3524.8669573277

Square

Length = n
Perimeter 2244
Area 314721
Diagonal 793.37380849131

Cube

Length = n
Surface area 1888326
Volume 176558481
Space diagonal 971.68050304614

Equilateral Triangle

Length = n
Perimeter 1683
Area 136278.19055222
Altitude 485.84025152307

Triangular Pyramid

Length = n
Surface area 136278.19055222
Volume 20807616.531849
Height 264.45793616377