Properties of the Number 81104

Eighty-One Thousand One Hundred Four

Basics

Value: 81103 → 81104 → 81105

Parity: even

Prime: No

Previous Prime: 81101

Next Prime: 81119

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ⁴ × 37 × 137

Divisors: 1, 2, 4, 8, 16, 37, 74, 137, 148, 274

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110011010000

Octal: 236320

Duodecimal: 3AB28

Hexadecimal: 13cd0

Square: 6577858816

Square Root: 284.787640181241

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

G.f. satisfies: [x^n-1] A(x)^n² = (n!)² for n>=1. A263190

Number of quadrilateral regions in a "frame" of size n X n (see Comments in A331776 for definition), divided by 8. A332596

Number of base 26 circular n-digit numbers with adjacent digits differing by 9 or less. A125483

Duplicate of A079028. A81104