Properties of the Number -26486

Twenty-Six Thousand Four Hundred Eighty-Six

Basics

Value: -26487 → -26486 → -26485

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 17 × 19 × 41

Divisors: 1, 2, 17, 19, 34, 38, 41, 82, 323, 646

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110011101110110

Octal: -63566

Duodecimal: -133B2

Hexadecimal: -6776

Square: 701508196

Square Root: 162.7451996219858

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

a(n) = pg(3, n) + pg(4, n) + ... + pg(n, n) where pg(m, n) is the n-th m-th-order polygonal number. A241452

Numbers n such that σ(n)=σ(d₁)*σ(d₂)*...*σ(d_k) where d₁ d₂ ... d_k is the decimal expansion of n. A98771

Number of 7-element subsets of [n] whose sum is a triangular number. A320853

a(n) = ∑_k=1..n (k+2)!/k! = ∑_k=1..n (k+2)*(k+1). A180118