Number 1680

Interestingness: 11 · Rank #230 of 1000

Visual representations

Binary image (n×n bits)
Octogonal · P8(24) = 1680
2⁴357
Prime factorization

Representations of 1680

͵αχπ
१६८०
١٦٨٠
MDCLXXX
●●●●
●●●●
一千六百八十
א׳ תרפ
𓆼
𓈖𓈖𓈖𓈖𓈖𓈖
𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
.-----....---..-----

1680 in different numeral systems

Binary
11010010000
Base-3
Base-4
Base-5
Base-6
Base-7
Base-8
Duodecimal
b80
Hex
Vigesimal
Base-24
2m0
Base-36
1ao
Negabinary
1101110010000

Factorization

Prime factors: 2, 3, 5, 7
Divisors: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680
Sum of divisors other than 1680: 4272
Product of prime factors: 1680 = 2 × 2 × 2 × 2 × 3 × 5 × 7

Number-theory characteristics (7)

Octogonal Difference of 2 squares Evil number Refactorable Even Composite Abundant

Base-10 digit properties (2)

These depend on the decimal representation of the number.

Harshad Duck number

Related primes

Number 1680 prime
Prime number before 1680
Prime number after 1680