Properties of the Number 83805

Eighty-Three Thousand Eight Hundred Five

Basics

Value: 83804 → 83805 → 83806

Parity: odd

Prime: No

Previous Prime: 83791

Next Prime: 83813

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 37 × 151

Divisors: 1, 3, 5, 15, 37, 111, 151, 185, 453, 555

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100011101011101

Octal: 243535

Duodecimal: 405B9

Hexadecimal: 1475d

Square: 7023278025

Square Root: 289.49093250048435

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, 1, 2, 3 or 5 king-move adjacent elements, with upper left element zero. A298195

a(n) = a(n-1) - (n-1)*a(n-4), with a(0) = 0, a(1) = 1, a(2) = 2, a(3) = 1. A122022

Number of (n+3)X11 binary arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock. A188104

Number of -2..2 arrays x(0..n-1) of n elements with zero sum and no two consecutive declines, no adjacent equal elements, and no element more than one greater than the previous (random base sawtooth pattern). A200175

Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 king-move adjacent elements, with upper left element zero. A298190

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 0), (-1, 1, 1), (0, -1, 0), (1, 0, 1), (1, 1, -1)}. A149473

n-th partial concatenation of terms of A083804 divided by n. A83805