Properties of the Number 11934

Eleven Thousand Nine Hundred Thirty-Four

Basics

Value: 11933 → 11934 → 11935

Parity: even

Prime: No

Previous Prime: 11933

Next Prime: 11939

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 13 × 17

Divisors: 1, 2, 3, 6, 9, 13, 17, 18, 26, 27

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10111010011110

Octal: 27236

Duodecimal: 6AA6

Hexadecimal: 2e9e

Square: 142420356

Square Root: 109.24284873619875

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

Triangle formed from even-numbered columns of triangle of expansions of powers of·in terms of Chebyshev polynomials U_n(x). A39599

Catalan's triangle T(n,k) (read by rows): each term is the sum of the entries above and to the left, i.e., T(n,k) = ∑_j=0..k T(n-1,j). A9766

a(n) = 3*(2·n)!/((n+2)!*(n-1)!). A245

a(n) = Sum_i=1..n binomial(i+2,3)² [ Sequential sums of the tetragonal numbers or "tetras" (pyramidal, square) raised to power 2 (drawn from the 4th diagonal - left or right - of Pascal's Triangle) ]. A86020

Triangle T(n,m) = ∑_k=0..m Catalan(n-k)*Catalan(k). A28364

Catalan's triangle with right border removed (n > 0, 0 <= k < n). A30237

a(n) = 3·binomial(2n, n-1)/(n+2), n > 0, with a(0)=1. A71724

Numbers k such that k and k+1 have 4 distinct prime factors. A140078

Riordan array (1,c(-x)), where c(x) = g.f. of Catalan numbers. A99039

a(n) = 2·n*(4·n-3). A139271