1686 (number)

1686 is an even 4-digits composite number following 1685 and preceding 1687. In scientific notation, it is written as 1.686 × 10^3. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 560 positive integers (up to 1686) that are relatively prime to 1686.

Interesting facts

Basic properties

Name

Name one thousand six hundred eighty-six

Notation

Scientific notation 1.686 × 10^3
Engineering notation 1.686 × 10^3

Prime Factorization of 1686

Prime Factorization 2 × 3 × 281

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 1686
Product of the distinct prime numbers

The prime factorization of 1686 is 2 × 3 × 281. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 2, 34, 2, 911, 613, 8378, 6103, 77786, 30261, 481749, 677244, 4597288, 5366021, 50774376, 16489579, 324581193, 772402591, 4721987509, 3415109780

Basic calculations (n = 1686)

Multiplication

n×y
n×2 3372
n×3 5058
n×4 6744
n×5 8430

Division

n÷y
n÷2 843
n÷3 562
n÷3 421.5
n÷5 337.2

Exponentiation

ny
n2 2842596
n3 4792616856
n4 8080352019216
n5 13623473504398176

Nth Root

y√n
2√n 41.060930335296
3√n 11.901979286149
4√n 6.4078803309125
5√n 4.4194834719561

Divisors of 1686

1, 2, 3, 6, 281, 562, 843, 1686

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 -1685
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 1686 can be divided by 8 positive divisors. The sum of these divisors (counting 1686) is 1, the average is 0.125.

Base conversion 1686

Base System Value
2 Binary 11010010110
3 Ternary 2022110
4 Quaternary 122112
5 Quinary 23221
6 Senary 11450
8 Octal 3226
10 Decimal 1686
12 Duodecimal b86
16 Hexadecimal 696
20 Vigesimal 446
36 Base36 1au

Cryptographic Hash Functions

md5 b618c3210e934362ac261db280128c22
sha1 a9620937b497cee48d5ec618d6045ccffaf65ff5
sha256 78332745628ea113b091333b92951f03561d14e3eea87ba572b594634ad3054d
sha512 62fee52384b2f3c0d1306329094ed0e21bf5decc03d4c7a3858dab057afaf9a2f2645c4ecf737295c26cb672e30cd1181f599014375129a430f879912116794c
ripemd-160 ff65e86119815e6da1d937e92889309e2549d745

1686 as geometric shapes

Circle

Radius = n
Diameter 3372
Circumference 10593.450427905
Area 8930278.7107237

Sphere

Radius = n
Volume 20075266541.707
Surface area 35721114.842895
Circumference 10593.450427905

Square

Length = n
Perimeter 6744
Area 2842596
Diagonal 2384.364066161

Cube

Length = n
Surface area 17055576
Volume 4792616856
Space diagonal 2920.2376615611

Equilateral Triangle

Length = n
Perimeter 5058
Area 1230880.174348
Altitude 1460.1188307806

Triangular Pyramid

Length = n
Surface area 1230880.174348
Volume 564815313.08443
Height 794.78802205368