Properties of the Number 13947

Thirteen Thousand Nine Hundred Forty-Seven

Basics

Value: 13946 → 13947 → 13948

Parity: odd

Prime: No

Previous Prime: 13933

Next Prime: 13963

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 4649

Divisors: 1, 3, 4649, 13947

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 11011001111011

Octal: 33173

Duodecimal: 80A3

Hexadecimal: 367b

Square: 194518809

Square Root: 118.09741741460734

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

Divisors of 9999999. A27891

Divisors of 10¹⁴ - 1. A106305

Expansion of ∏_k>=1 ((1+x^3·k-1)*(1+x^3·k-2))^k. A262884

Sum over each antidiagonal of A244306. A244307

Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 437", based on the 5-celled von Neumann neighborhood. A282216

Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 461", based on the 5-celled von Neumann neighborhood. A282369

G.f. A(x) satisfies A(x) = 1 + x·abs( 1/A(x) )³. A380709

G.f.: [∑_n>=0 x^n*(n+1/2) * (1+x)ⁿ ]³. A182152

Becomes prime after exactly 7 iterations of f(x) = sum of prime factors of x. A47826

Smallest index i such that next_prime( 2·prime(i) ) - 2·prime(i) = 2n - 1. A74973