Properties of the Number 85222

Eighty-Five Thousand Two Hundred Twenty-Two

Basics

Value: 85221 → 85222 → 85223

Parity: even

Prime: No

Previous Prime: 85213

Next Prime: 85223

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 42611

Divisors: 1, 2, 42611, 85222

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10100110011100110

Octal: 246346

Duodecimal: 4139A

Hexadecimal: 14ce6

Square: 7262789284

Square Root: 291.9280733331414

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) = floor(3ⁿ / 2ⁿ). A2379

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero. A316641

Values of floor((3/2)ⁿ) that are composite. A70758

a(n) = floor(9ⁿ/4ⁿ). A94981

Number of nX5 0..1 arrays with every element unequal to 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero. A316638

Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero. A316639

Factorial expansions of the entries in A085220. A85222

a(n) is the least integer k with exactly 10ⁿ divisors. A370515