Properties of the Number 81852

Eighty-One Thousand Eight Hundred Fifty-Two

Basics

Value: 81851 → 81852 → 81853

Parity: even

Prime: No

Previous Prime: 81847

Next Prime: 81853

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 19 × 359

Divisors: 1, 2, 3, 4, 6, 12, 19, 38, 57, 76

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011111110111100

Octal: 237674

Duodecimal: 3B450

Hexadecimal: 13fbc

Square: 6699749904

Square Root: 286.09788534695605

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 (n+1) X (1+1) 0..1 arrays with nondecreasing max(x(i,j),x(i,j-1)) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction. A250576

Number of compositions of n into parts 1, 9, and 10. A368244

Consider recurrence b(0) = n/3, b(n) = b(0)*ceiling(b(n-1)); sequence gives first integer reached (or -1 if no integer is ever reached). A81852