666 (number)

666 is an even 3-digits composite number following 665 and preceding 667. In scientific notation, it is written as 6.66 × 10^2. The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors. There are 216 positive integers (up to 666) that are relatively prime to 666.

Interesting facts

Basic properties

Name

Name six hundred sixty-six

Notation

Scientific notation 6.66 × 10^2
Engineering notation 6.66 × 10^0

Prime Factorization of 666

Prime Factorization 2 × 9 × 37

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 666
Product of the distinct prime numbers

The prime factorization of 666 is 2 × 9 × 37. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 666)

Multiplication

n×y
n×2 1332
n×3 1998
n×4 2664
n×5 3330

Division

n÷y
n÷2 333
n÷3 222
n÷3 166.5
n÷5 133.2

Exponentiation

ny
n2 443556
n3 295408296
n4 196741925136
n5 131030122140576

Nth Root

y√n
2√n 25.806975801128
3√n 8.732891741296
4√n 5.0800566730232
5√n 3.6702432264521

Divisors of 666

1, 2, 9, 18, 37, 74, 333, 666

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 -665
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 666 can be divided by 8 positive divisors. The sum of these divisors (counting 666) is 1, the average is 0.125.

Base conversion 666

Base System Value
2 Binary 1010011010
3 Ternary 220200
4 Quaternary 22122
5 Quinary 10131
6 Senary 3030
8 Octal 1232
10 Decimal 666
12 Duodecimal 476
16 Hexadecimal 29a
20 Vigesimal 1d6
36 Base36 ii

Cryptographic Hash Functions

md5 fae0b27c451c728867a567e8c1bb4e53
sha1 cd3f0c85b158c08a2b113464991810cf2cdfc387
sha256 c7e616822f366fb1b5e0756af498cc11d2c0862edcb32ca65882f622ff39de1b
sha512 2acdcd7a6497cc2702c9f3cf87d4ac93562676841bc518ccd7f0a0061b4a58c4928b9115e2fdc32dfe3e3bdf80a2119a6d39c3125b16e0e7085a65c3777585bc
ripemd-160 58751ef16a600a191dcf7aa1d4326d55193c5f08

666 as geometric shapes

Circle

Radius = n
Diameter 1332
Circumference 4184.6014145816
Area 1393472.2710557

Sphere

Radius = n
Volume 1237403376.6974
Surface area 5573889.0842227
Circumference 4184.6014145816

Square

Length = n
Perimeter 2664
Area 443556
Diagonal 941.86623254048

Cube

Length = n
Surface area 2661336
Volume 295408296
Space diagonal 1153.5458378409

Equilateral Triangle

Length = n
Perimeter 1998
Area 192065.38200051
Altitude 576.77291892044

Triangular Pyramid

Length = n
Surface area 192065.38200051
Volume 34814201.553394
Height 313.95541084683