Properties of the Number -4891

Eight Hundred Ninety-One

Basics

Value: -4892 → -4891 → -4890

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 67 × 73

Divisors: 1, 67, 73, 4891

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1001100011011

Octal: -11433

Duodecimal: -29B7

Hexadecimal: -131b

Square: 23921881

Square Root: 69.93568473962345

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

∏_n>=1 (1 + xⁿ)^a(n) = 1 + ∑_n>=1 σ(n) * xⁿ, where σ = A000203. A328776

Numbers that are the sum of 11 positive 7th powers. A3378

Numbers that are the sum of 5 positive 6th powers. A3361

a(n) = prime(n)*prime(n+2). A90076

Base-5 Armstrong or narcissistic numbers (written in base 10). A10346

Numbers k such that k² is palindromic in base 8. A29805

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 horizontally and 0 0 1 vertically. A207088

Sums of six consecutive squares: a(n) = n² + (n+1)² + (n+2)² + (n+3)² + (n+4)² + (n+5)². A27865

Base 5 perfect digital invariants (written in base 10): numbers equal to the sum of the k-th powers of their base-5 digits, for some k. A162222

Product of the n-th sexy prime pair. A111192