Properties of the Number 18672

Eighteen Thousand Six Hundred Seventy-Two

Basics

Value: 18671 → 18672 → 18673

Parity: even

Prime: No

Previous Prime: 18671

Next Prime: 18679

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ⁴ × 3 × 389

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

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100100011110000

Octal: 44360

Duodecimal: A980

Hexadecimal: 48f0

Square: 348643584

Square Root: 136.64552682030978

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

T(n,k)=Number of nXk 0..2 arrays with antidiagonals unimodal and rows and diagonals nondecreasing. A223999

Number of aperiodic matrices of size n whose entries cover an initial interval of positive integers. A323869

Molien series for Conway group Con.0. A8925

Numbers k such that k·2^k - k - 1 is prime. A46843

Cardinality of Image^inf({ 2 }) under repeated base-n zero-split doubling. A254638

Numbers k such that sopfr(k) = τ(k)². A305026

a(n) = Glaisher's function β(2n+1). A322032

a(n) = ∑_k=0..n 2^k * 3^n-k * binomial(k+2,2) * binomial(k,n-k)². A391678

Expansion of ((b(q)*c(q))³ - 8*(b(q²)*c(q²))³) / 27 in powers of q where b(), c() are cubic AGM θ functions. A128486

Number of pairs of rabbits in month n in the dying rabbits problem, if they become mature after 4 months and give birth to exactly 7 pairs, one per month. A160333