Properties of the Number -81133

Eighty-One Thousand One Hundred Thirty-Three

Basics

Value: -81134 → -81133 → -81132

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 13 × 79 ²

Divisors: 1, 13, 79, 1027, 6241, 81133

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10011110011101101

Octal: -236355

Duodecimal: -3AB51

Hexadecimal: -13ced

Square: 6582563689

Square Root: 284.83855076165514

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

Positive integers k such that k | (12^k + 1). A15961

Numbers k such that σ(k) = ψ(k) + τ(k) + ω(k)³. A392263

Numbers of the form p²*q, with odd primes p > q, such that q divides p-1. A350638

a(n) = a(n-1) + a(n-2) - a(n-4) starting a(0)=0, a(1)=1, a(2)=a(3)=3. A168637