Properties of the Number 19695

Nineteen Thousand Six Hundred Ninety-Five

Basics

Value: 19694 → 19695 → 19696

Parity: odd

Prime: No

Previous Prime: 19687

Next Prime: 19697

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 13 × 101

Divisors: 1, 3, 5, 13, 15, 39, 65, 101, 195, 303

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100110011101111

Octal: 46357

Duodecimal: B493

Hexadecimal: 4cef

Square: 387893025

Square Root: 140.3388755833536

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

Positive integers whose square is the sum of 26 consecutive squares. A257765

Expansion of ∏_k>=1 (1 + x^k)^sigma₃(k). A288415

Expansion of ∏_k>=1 (1 - x^k)¹⁵. A10822

Number of ways to place 4 nonattacking nightriders on a 4 X n board. A172219

Numbers k that divide ∑_j∣k j^k/j. A343982

Composite squarefree integers for which the sum of the squares of their factors is a square. A379780

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, 0), (0, 1, -1), (0, 1, 1), (1, 0, 0)}. A150174

Expansion of g.f. A(x) satisfying A(x)⁴ = ∑_n=-oo..+oo (-x)ⁿ * (A(x)⁵ + x^n-1)ⁿ⁺¹. A363137

Decimal expansion of 2*π/7. A19695

Number of ways to place 6 nonattacking grasshoppers on a toroidal chessboard of size n·n. A190401