Properties of the Number 52245

Fifty-Two Thousand Two Hundred Forty-Five

Basics

Value: 52244 → 52245 → 52246

Parity: odd

Prime: No

Previous Prime: 52237

Next Prime: 52249

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ⁵ × 5 × 43

Divisors: 1, 3, 5, 9, 15, 27, 43, 45, 81, 129

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1100110000010101

Octal: 146025

Duodecimal: 26299

Hexadecimal: cc15

Square: 2729540025

Square Root: 228.5716517856053

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) = ∑_k=0..n floor(sqrt(Bell(k)))*floor(sqrt(Bell(n-k))). A192573

Powers of fourth root of 5 rounded to nearest integer. A18058

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 673", based on the 5-celled von Neumann neighborhood. A273406

Powers of fourth root of 5 rounded down. A18057

Expansion of 10·x / ((1 - x) * (1 - 10·x)²) in powers of x. A52245

Number of (n+2)X(5+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00000111. A260067