Properties of the Number 12426

Twelve Thousand Four Hundred Twenty-Six

Basics

Value: 12425 → 12426 → 12427

Parity: even

Prime: No

Previous Prime: 12421

Next Prime: 12433

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 19 × 109

Divisors: 1, 2, 3, 6, 19, 38, 57, 109, 114, 218

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 11000010001010

Octal: 30212

Duodecimal: 7236

Hexadecimal: 308a

Square: 154405476

Square Root: 111.47196957082978

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 n such that 4ⁿ-3^n-1 is prime. A271884

a(n) = prime(n)*(prime(n+1) + 1). A123134

T(n,k) is the total number of levels in all Dyck paths of semilength n containing exactly k path nodes; triangle T(n,k), n>=0, 1<=k<=n+1, read by rows. A371928

Number of partitions of 1 into fractions i/j with 1<=i<j<=n and i,j coprime. A115855

Expansion of (1+3·x+9·x²+9·x³+9·x⁴+3·x⁵+x⁶) /( (1+x)² * (1-x)⁵ ). A175898

a(n) = (35·n⁴ - 35·n³ + 55·n² - 25·n + 6)/6. A181343

Number of terms in the fully expanded n-th derivative of x^{x^x}. A281434

Indices where the cumulative sum of sin(2k+1)^2k+1 reaches a record high value. A387706

"666" in bases 7 and higher rewritten in base 10. A121205

a(n) = (n³ - 3n² + 14n - 6)/6. A180415