Properties of the Number 81898

Eighty-One Thousand Eight Hundred Ninety-Eight

Basics

Value: 81897 → 81898 → 81899

Parity: even

Prime: No

Previous Prime: 81883

Next Prime: 81899

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 × 40949

Divisors: 1, 2, 40949, 81898

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011111111101010

Octal: 237752

Duodecimal: 3B48A

Hexadecimal: 13fea

Square: 6707282404

Square Root: 286.1782661209617

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 walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, -1), (0, 1, 0), (1, 0, -1), (1, 0, 1)}. A150162

Second binomial transform of binomial(n+4, 4). A81898