Properties of the Number 12492

Twelve Thousand Four Hundred Ninety-Two

Basics

Value: 12491 → 12492 → 12493

Parity: even

Prime: No

Previous Prime: 12491

Next Prime: 12497

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 347

Divisors: 1, 2, 3, 4, 6, 9, 12, 18, 36, 347

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11000011001100

Octal: 30314

Duodecimal: 7290

Hexadecimal: 30cc

Square: 156050064

Square Root: 111.76761606118295

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

Numbers k such that k and k + 1 are both Niven numbers in base 3/2 (A342426). A342427

Expansion of 4th power of continued fraction 1/ ( 1+q/ ( 1+q²/ ( 1+q³/ ( 1+q⁴/... )))). A55103

T(n,k) = Number of length n+1 nonnegative integer arrays starting and ending with 0 with adjacent elements differing by no more than k. A204213

T(n,k)=Half the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having exactly one duplicate clockwise edge difference. A209787

Column 2 of triangle in A288187. A333279

Number of partitions p = [x(1), ..., x(k)], where x(1) >= x(2) >= ... >= x(k), of n such that max(x(i) - x(i-1)) >= number of parts of p. A241831

a(n) = 961·n - 1. A158412

Number of length n+1 nonnegative integer arrays starting and ending with 0 with adjacent elements differing by no more than 3. A204208

Permuted compound filter: a(n) = A286458(A064216(n)). A286459

a(1) = 2; for n > 1, a(n) = a(n-1)*prime(n) if a(n-1)<=prime(n), otherwise a(n) = a(n-1)-prime(n). A382619