Properties of the Number 51983

Fifty-One Thousand Nine Hundred Eighty-Three

Basics

Value: 51982 → 51983 → 51984

Parity: odd

Prime: No

Previous Prime: 51977

Next Prime: 51991

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 227 × 229

Divisors: 1, 227, 229, 51983

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100101100001111

Octal: 145417

Duodecimal: 260BB

Hexadecimal: cb0f

Square: 2702232289

Square Root: 227.99780700699733

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 that are the product of a pair of twin primes. A37074

Odd Fibonacci pseudoprimes: odd composite numbers k such that either (1) k divides Fibonacci(k-1) if k == +-1 (mod 5) or (2) k divides Fibonacci(k+1) if k == +-2 (mod 5). A81264

a(n) = prime(2·n-1)*prime(2·n). A89581

a(n) = pq + pr + qr with p = prime(n), q = prime(n+1), and r = prime(n+2). A127345

Composite numbers k that divide Fibonacci(k+1). A69107

a(n) = 36n² - 1. A136017

Odd composites m that divide Fibonacci(m)-1. A94394

Composites in A127345. A127347

Product of twin primes of form (4·k+3,4*(k+1)+1), k>=0. A71700

Sum of n-th antidiagonal of array in A082002. A82005