Properties of the Number 25811

Twenty-Five Thousand Eight Hundred Eleven

Basics

Value: 25810 → 25811 → 25812

Parity: odd

Prime: No

Previous Prime: 25801

Next Prime: 25819

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 53 × 487

Divisors: 1, 53, 487, 25811

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110010011010011

Octal: 62323

Duodecimal: 12B2B

Hexadecimal: 64d3

Square: 666207721

Square Root: 160.65802189744525

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

Smallest k such that k·2*p(n)²+1=q is prime, k·2*q²+1=r, k·2*r²+1=s, k·2*r²+1=t, r, s, and t are also prime. A224496

Numbers k such that k!6 - 24 is prime, where k!6 is the sextuple factorial number (A085158). A289697

Numbers k such that k!6 - 32 is prime, where k!6 is the sextuple factorial number (A085158). A289699

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), (0, 0, 1), (1, 0, 0)}. A149915

Expansion of 1/((1-x²)*(1-x⁵)*(1-x¹¹)). A25811