Properties of the Number 51247

Fifty-One Thousand Two Hundred Forty-Seven

Basics

Value: 51246 → 51247 → 51248

Parity: odd

Prime: No

Previous Prime: 51241

Next Prime: 51257

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 7 × 7321

Divisors: 1, 7, 7321, 51247

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100000101111

Octal: 144057

Duodecimal: 257A7

Hexadecimal: c82f

Square: 2626255009

Square Root: 226.37800246490383

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

G.f. 1/[∑_n>=0 (2·n+1)*(-x)^n*(n+1/2)]. A202143

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, 0, 1), (1, -1, -1), (1, 1, -1), (1, 1, 0)}. A148718

Binary numbers d(1)...d(j) such that d(i) = d(j+1-i) for all but 4 values of i. A51247