Properties of the Number 15406

Fifteen Thousand Four Hundred Six

Basics

Value: 15405 → 15406 → 15407

Parity: even

Prime: No

Previous Prime: 15401

Next Prime: 15413

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 7703

Divisors: 1, 2, 7703, 15406

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11110000101110

Octal: 36056

Duodecimal: 8ABA

Hexadecimal: 3c2e

Square: 237344836

Square Root: 124.12090879461043

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

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 1 and no column sum 1. A255149

a(n) = 6ⁿ mod 5ⁿ. A138649

Numbers k that are the products of two distinct primes such that 2·k-1, 4·k-3, 8·k-7, 16·k-15 and 32·k-31 are also products of two distinct primes. A177214

Expansion of (η(q⁵) * η(q¹⁰) / (η(q) * η(q²)))² in powers of q. A227213

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 66 ones. A31834

a(n) = 10·n² + 5·n + 1. A80860

Number of binary strings of length n with no substrings equal to 0001, 0100, or 0111. A164464

Semiprimes that are the sum of 10 consecutive primes. A185347

Smallest positive even number in the sequence (k+1)ⁿ (mod kⁿ) for k=1,2,3.... A188699

Number of (n+2)X(1+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 1 and no column sum 1. A255142