Properties of the Number 2065

Two Thousand Sixty-Five

Basics

Value: 2064 → 2065 → 2066

Parity: odd

Prime: No

Previous Prime: 2063

Next Prime: 2069

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 5 × 7 × 59

Divisors: 1, 5, 7, 35, 59, 295, 413, 2065

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100000010001

Octal: 4021

Duodecimal: 1241

Hexadecimal: 811

Square: 4264225

Square Root: 45.44227107000705

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 "ON" cells at n-th stage in the "Ulam-Warburton" two-dimensional cellular automaton. A147562

Triangle read by rows: row n is the first row of the matrix M[n]^n-1, where M[n] is the n X n tridiagonal matrix with main diagonal (3,4,4,...) and super- and subdiagonals (1,1,1,...). A124574

Expansion of 1/(1 - x + x² - x³ - x⁶ + x⁷ - x⁸ + x⁹ - x¹⁰ + x¹¹ - x¹² -x¹⁵ + x¹⁶ - x¹⁷ + x¹⁸). A173911

Table giving A106486-codes for each equivalence class of combinatorial games. A126000

Number of ordered pairs (i,j), 0 <= i,j < n, for which (i & j) is nonzero, where & is the bitwise AND operator. A80572

a(n) = n*(3·n + 13)/2. A140672

a(n) = n² + 5·n + 1. A82111

Numbers n such that φ(n) | sigma₇(n). A15765

Numbers k > 1 such that, in base 8, k and k² contain the same digits in the same proportion. A61662

Number of distinct lines through the origin in the n-dimensional lattice of side length 6. A90022