Properties of the Number 20294

Twenty Thousand Two Hundred Ninety-Four

Basics

Value: 20293 → 20294 → 20295

Parity: even

Prime: No

Previous Prime: 20287

Next Prime: 20297

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 73 × 139

Divisors: 1, 2, 73, 139, 146, 278, 10147, 20294

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100111101000110

Octal: 47506

Duodecimal: B8B2

Hexadecimal: 4f46

Square: 411846436

Square Root: 142.45701105947717

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

O.g.f. A(x) satisfies: [xⁿ] exp(n·A(x)) * (1 - n·x/(1-x)) = 0, for n > 0. A321087

Coefficients in the power series expansion of A(x) = ∑_n=-oo..+oo n*(n+1)/2·x^2·n * (1 - xⁿ)^n-2. A356775

Numbers k such that one can make an equilateral triangle from a chain of linked rods of length 1, 2, 3, ..., k, with perimeter equal to the total length. A382632

Number of 3-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions. A187298

a(n) = 24·A274300(n) + 14. A274301

a(n) = a(n-1) + a(n-2) + 1 with a(0)=2 and a(1)=2. A377628

Strong pseudoprimes to base 68. A20294

Number of length 4+3 0..n arrays with some disjoint pairs in every consecutive four terms having the same sum. A247536