Properties of the Number 42751

Forty-Two Thousand Seven Hundred Fifty-One

Basics

Value: 42750 → 42751 → 42752

Parity: odd

Prime: Yes

Previous Prime: 42743

Next Prime: 42767

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 42751

Divisors: 1, 42751

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010011011111111

Octal: 123377

Duodecimal: 208A7

Hexadecimal: a6ff

Square: 1827648001

Square Root: 206.7631495213787

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

The Riemann primes of the ψ type and index 1. A197185

Expansion of f(-x⁶)³ / (f(x)² * ψ(x)) in powers of·where ψ(), f() are Ramanujan θ functions. A262156

Expansion of f(-x, -x⁵) * f(x³, x⁵) / f(-x, -x²)² in powers of·where f(, ) is Ramanujan's general θ function. A262987

Centered 15-gonal (or pentadecagonal) primes. A264822

Indices where A092243 strictly changes sign. A269737

Logarithmic derivative of the q-exponential of x, E_q(x,q), evaluated at q=-x. A198262

Primes that can be represented as k·R(k) + 1, where R(k) is the reverse of k. A372197

Denominators of continued fraction convergents to sqrt(906). A42751