Properties of the Number 81474

Eighty-One Thousand Four Hundred Seventy-Four

Basics

Value: 81473 → 81474 → 81475

Parity: even

Prime: No

Previous Prime: 81463

Next Prime: 81509

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 37 × 367

Divisors: 1, 2, 3, 6, 37, 74, 111, 222, 367, 734

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011111001000010

Octal: 237102

Duodecimal: 3B196

Hexadecimal: 13e42

Square: 6638012676

Square Root: 285.4365078261714

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

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero. A298667

Triangle T(n,m) by rows: the number of tatami tilings of a 4 by n grid with 2·m monomers. A272473

Number of distinct lines through the origin in n-dimensional cube of side length n. A81474