Properties of the Number 81222

Eighty-One Thousand Two Hundred Twenty-Two

Basics

Value: 81221 → 81222 → 81223

Parity: even

Prime: No

Previous Prime: 81203

Next Prime: 81223

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 13537

Divisors: 1, 2, 3, 6, 13537, 27074, 40611, 81222

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110101000110

Octal: 236506

Duodecimal: 3B006

Hexadecimal: 13d46

Square: 6597013284

Square Root: 284.99473679350643

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) = 318·2ⁿ - 186 (n>=1). A304511

Smallest number m with ∑_k=n..n+m μ(k) = 0, where μ=A008683 (Möbius function). A81222