Properties of the Number 12984

Twelve Thousand Nine Hundred Eighty-Four

Basics

Value: 12983 → 12984 → 12985

Parity: even

Prime: No

Previous Prime: 12983

Next Prime: 13001

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ³ × 3 × 541

Divisors: 1, 2, 3, 4, 6, 8, 12, 24, 541, 1082

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 11001010111000

Octal: 31270

Duodecimal: 7620

Hexadecimal: 32b8

Square: 168584256

Square Root: 113.94735626595292

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

Expansion of ∏_m>=1 ((1+q^2·m-1)/(1+q^2·m))⁵. A29842

Fundamental discriminants of real quadratic number fields with class number 10. A218160

Numbers for which the sum of the digits is the square root of the product of their digits. A117720

Expansion of ∏_{i>0, j>0, k>0} (1 + x^{i² + j² + k²}). A321429

Number of acute isosceles triangles on an n X n grid. A190317

a(n) where a(n) * a(n-5) * a(n-10) = a(n-1) * a(n-6) * a(n-8) + a(n-2) * a(n-4) * a(n-9), with a(1) = ... = a(10) = 1. A205303

Numbers missing from A134419 despite satisfying the necessary congruence conditions (see comments). A274471

Numbers k for which A003958(σ(k)) = 2·A003958(k), where A003958 is multiplicative with a(p^e) = (p-1)^e and σ is the sum of divisors function. A351447

Triangle of coefficients of polynomials u(n,x) jointly generated with A208930; see the Formula section. A208909

Numbers missing from A001032 despite satisfying the necessary congruence conditions (see comments). A274469