Properties of the Number -22486

Twenty-Two Thousand Four Hundred Eighty-Six

Basics

Value: -22487 → -22486 → -22485

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 11243

Divisors: 1, 2, 11243, 22486

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101011111010110

Octal: -53726

Duodecimal: -1101A

Hexadecimal: -57d6

Square: 505620196

Square Root: 149.95332607181476

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

Number of permutations of [n] whose lengths of increasing runs are prime numbers. A317131

Expansion of ∏_{1 <= i₁ <= i₂ <= i₃ <= i₄} (1 + x^{i₁*i₂*i₃*i₄}). A321567

a(n) is the smallest term m in A173978 for which A020639(2m-3) = prime(n), n > 1. A173980

Number of ordered triples (w,x,y) with all terms in {1,...,n} and w⁴>x⁴+y⁴. A211653

Number of nX4 0..1 arrays with every element unequal to 0, 1, 3 or 8 king-move adjacent elements, with upper left element zero. A304217

Convolution of natural numbers with Beatty sequence for the golden mean A000201. A23541

Even numbers k such that if a person is born in year k and lives not more than 100 years, then he never celebrates his prime birthday on a prime year. A124658

a(n) is the binary XOR of all n-bit triangular numbers. A298818