Properties of the Number 12624

Twelve Thousand Six Hundred Twenty-Four

Basics

Value: 12623 → 12624 → 12625

Parity: even

Prime: No

Previous Prime: 12619

Next Prime: 12637

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ⁴ × 3 × 263

Divisors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000101010000

Octal: 30520

Duodecimal: 7380

Hexadecimal: 3150

Square: 159365376

Square Root: 112.35657524150511

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

Number of disconnected 2-regular graphs on n vertices. A165652

Numbers whose set of base 5 digits is {0,4}. A97251

Number of chiral pairs of necklaces with n beads and two colors (color complements being equivalent); i.e., turning the necklace over neither leaves it unchanged nor simply swaps the colors. A59053

Number of achiral polyominoes with n cells. A30227

Sum of primes p with n² < p < (n+1)². A108314

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the maximum plus the upper median minus the minimum of every 2X2 subblock. A237391

Concatenate factorials. A45508

a(n) = ∑_{k=0..floor(n/3)} (-1)^k * binomial(2·n-6·k,n-3·k). A360186

Expansion of ∑_i>=1 μ(i)²*xⁱ/(1 - xⁱ) / ∏_j>=1 (1 - μ(j)²*x^j), where μ() is the Moebius function (A008683). A281572

Row lengths of irregular triangle A381587. A381357