Properties of the Number 15342

Fifteen Thousand Three Hundred Forty-Two

Basics

Value: 15341 → 15342 → 15343

Parity: even

Prime: No

Previous Prime: 15331

Next Prime: 15349

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 2557

Divisors: 1, 2, 3, 6, 2557, 5114, 7671, 15342

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11101111101110

Octal: 35756

Duodecimal: 8A66

Hexadecimal: 3bee

Square: 235376964

Square Root: 123.8628273534881

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 T(n,k) read by rows: T(n,k) is the number of length-n ascent sequences with exactly k descents. A238858

Permutations of 12345: Numbers having each of the decimal digits 1,...,5 exactly once, and no other digit. A178475

Decimal encoding T(n,k) of the k-th non-averaging permutation of [n]; triangle T(n,k), n >= 0, k = 1..A003407(n), read by rows. A292523

Let (u1,u2) be successive untouchable numbers such that φ(u1) = φ(u2); sequence gives values of u1. A48189

a(n) = 529·n + 1. A158368

Number of ascent sequences of length n with exactly two descents. A241872

a(n) = A333650(n, 3) for n >= 3; a(1) = a(2) = 0. A339493

Number of permutations of length n avoiding the permutations 13452, 13542, 14253, 14352, 14532, 15243, 15342, 15432, 24153, and 25143. A366706

Positive numbers k such that k and 2·k are anagrams in base 6 (written in base 6). A23064

Sum of the prime numbers appearing along the border of an n X n square array whose elements are the numbers from 1..n², listed in increasing order by rows. A344846