Properties of the Number 11663

Eleven Thousand Six Hundred Sixty-Three

Basics

Value: 11662 → 11663 → 11664

Parity: odd

Prime: No

Previous Prime: 11657

Next Prime: 11677

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 107 × 109

Divisors: 1, 107, 109, 11663

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110110001111

Octal: 26617

Duodecimal: 68BB

Hexadecimal: 2d8f

Square: 136025569

Square Root: 107.99537027113709

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

Products of 2 successive primes. A6094

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

Numbers that are products of (at least two) consecutive primes. A97889

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

a(n) = 36n² - 1. A136017

Odd composite integers m such that F(m)² == 1 (mod m), where F(m) is the m-th Fibonacci number. A337231

Numbers k such that k, k+2, k+4, k+6, k+8 are semiprimes. A92127

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

a(n) = 16n² + 32n + 15. A141759