Properties of the Number 61646

Sixty-One Thousand Six Hundred Forty-Six

Basics

Value: 61645 → 61646 → 61647

Parity: even

Prime: No

Previous Prime: 61643

Next Prime: 61651

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 13 × 2371

Divisors: 1, 2, 13, 26, 2371, 4742, 30823, 61646

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111000011001110

Octal: 170316

Duodecimal: 2B812

Hexadecimal: f0ce

Square: 3800229316

Square Root: 248.28612526679777

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, -1), (-1, -1, 0), (-1, 0, -1), (1, 0, 1), (1, 1, 0)}. A150127

Number of walks within N² (the first quadrant of Z²) starting at (0,0) and consisting of n steps taken from {(-1, -1), (-1, 0), (0, -1), (0, 1), (1, 0)}. A151286

a(n) = 2·a(n-1) + 2·a(n-2) - a(n-3) with a(-1) = 1, a(0) = 1, a(1) = 1. A61646