Properties of the Number 66203

Sixty-Six Thousand Two Hundred Three

Basics

Value: 66202 → 66203 → 66204

Parity: odd

Prime: No

Previous Prime: 66191

Next Prime: 66221

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 239 × 277

Divisors: 1, 239, 277, 66203

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000001010011011

Octal: 201233

Duodecimal: 3238B

Hexadecimal: 1029b

Square: 4382837209

Square Root: 257.29943645488225

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

Expansion of ∏_k>=1 (1 + x^k)^k*(k+1*(2·k+1)/6). A281156

Expansion of x/((1 - x - x⁴)*(1 - x)⁵). A145134

n-th 4k+1 prime times (n+1)st 4k+3 prime. A48628

Least k such that 2^{2^k} = n (mod k). A155886

Number of nX3 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302362

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302367

a(1) = 2; a(2) = 1; for n > 2, a(n) = a(n-1)-(n-1) if this is positive and has not already appeared in the sequence, otherwise a(n) = a(n-1)+(n-1). A66203