Properties of the Number -2026

Twenty-Six

Basics

Value: -2027 → -2026 → -2025

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 × 1013

Divisors: 1, 2, 1013, 2026

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11111101010

Octal: -3752

Duodecimal: -120A

Hexadecimal: -7ea

Square: 4104676

Square Root: 45.0111097397076

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) = n² + 1. A2522

Coordination sequence for 3D uniform tiling formed by stacking parallel layers of the 3.12.12 2D tiling (cf. A250122). A299257

Coordination sequence for "cab" 3D uniform tiling formed from octahedra and truncated cubes. A299266

Second-order Eulerian numbers: a(n) = 2ⁿ - 2·n. A5803

a(n) = least m such that if a/b < c/d where a,b,c,d are integers in [0,n], then a/b < k/m < c/d for some integer k. A1000

Centered square numbers: a(n) = 4·n² + 4·n + 2. A69894

Semiprimes of form prime - 1. A77065

Semiprimes of the form k²+1. A144255

Number of strict partitions of n such that (least part) > number of parts. A237979

Irregular triangle read by rows where T(n,k) is the number of integer compositions of n with k weak excedances (parts on or above the diagonal), all zeros removed. A352525