Properties of the Number 81498

Eighty-One Thousand Four Hundred Ninety-Eight

Basics

Value: 81497 → 81498 → 81499

Parity: even

Prime: No

Previous Prime: 81463

Next Prime: 81509

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 17 ² × 47

Divisors: 1, 2, 3, 6, 17, 34, 47, 51, 94, 102

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011111001011010

Octal: 237132

Duodecimal: 3B1B6

Hexadecimal: 13e5a

Square: 6641924004

Square Root: 285.4785456036933

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

Number of regions in a "cross" of width 3 and height n (see Comments for definition). A331455

Trails of length n on hexagonal lattice. A6818

Consider the triangle in which the n-th row starts with n, contains n terms and the difference of successive terms is 1,2,3,... up to n-1. Sequence gives row sums. A81498