Properties of the Number 1608

One Thousand Six Hundred Eight

Basics

Value: 1607 → 1608 → 1609

Parity: even

Prime: No

Previous Prime: 1607

Next Prime: 1609

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ³ × 3 × 67

Divisors: 1, 2, 3, 4, 6, 8, 12, 24, 67, 134

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11001001000

Octal: 3110

Duodecimal: B20

Hexadecimal: 648

Square: 2585664

Square Root: 40.099875311526844

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Average of twin prime pairs. A14574

a(n) = ∑_k=1..n k·floor(n/k); also ∑_k=1..n σ(k) where σ(n) = sum of divisors of n (A000203). A24916

Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(0) + b(1) + ... + b(n-1), where a(0) = 1, a(1) = 2, b(0) = 3, and (a(n)) and (b(n)) are increasing complementary sequences. A295053

a(n) = prime(n+1)² - prime(n)². A69482

Numbers that can be expressed as the difference of the squares of primes in just two distinct ways. A90788

Array read by antidiagonals: T(m,n) is the number of m X n binary arrays with all 1's connected and a path of 1's from top row to bottom row. A359574

a(n) = self-convolution of row n of array T given by A026519. A27262

Number of integer partitions of n with no pair of consecutive parts relatively prime. A328187

Number of connected regular graphs with n nodes and girth at least 4. A186724

Numbers k such that 11·k+1 is a square. A219257