Properties of the Number -56081

Fifty-Six Thousand Eighty-One

Basics

Value: -56082 → -56081 → -56080

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 56081

Divisors: 1, 56081

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101101100010001

Octal: -155421

Duodecimal: -28555

Hexadecimal: -db11

Square: 3145078561

Square Root: 236.81427321848656

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

First term of balanced prime quartets: p(m+1)-p(m) = p(m+2)-p(m+1) = p(m+3)-p(m+2). A54800

Initial prime in set of 4 consecutive primes with common difference 6. A33451

Primes p such that p, p+6, p+12, p+18 are consecutive primes and p=6·k+5 for some k. A90834

Primes p such that 2p+1, 4p+3, 6p+5 are all primes. A107020

Primes of the form k² + k + 55661, with k >= 0. A116206

a(n) = ∑_d∣n d² * (d+1)/2. A278403

Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2)*b(n-1)*b(n), where a(0) = 1, a(1) = 2, b(0) = 3, b(1) = 4, b(2) = 5, and (a(n)) and (b(n)) are increasing complementary sequences. A296278

Numbers n such that there are a, b with abs(σ(a) - σ(b)) = σ(n) - n and a U b = n, where U is decimal concatenation. A239563

Primes p such that the differences between the 5 consecutive primes starting with p are (6,6,6,2). A78968

Indices of primes in sequence defined by A(0) = 11, A(n) = 10·A(n-1) + 61 for n > 0. A56248