Properties of the Number 25211

Twenty-Five Thousand Two Hundred Eleven

Basics

Value: 25210 → 25211 → 25212

Parity: odd

Prime: No

Previous Prime: 25189

Next Prime: 25219

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 17 × 1483

Divisors: 1, 17, 1483, 25211

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110001001111011

Octal: 61173

Duodecimal: 1270B

Hexadecimal: 627b

Square: 635594521

Square Root: 158.77972162716497

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..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, diagonally or antidiagonally, top left element zero, and 1 appearing before 2 in row major order. A233098

T(n,k)=Number of nXk 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally or vertically, top left element zero, and 1 appearing before 2 in row major order. A233018

a(n) = (3·7ⁿ+1)/2. A199417

Number of nX6 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally or vertically, top left element zero, and 1 appearing before 2 in row major order. A233016

Number of 6Xn 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, diagonally or antidiagonally, top left element zero, and 1 appearing before 2 in row major order. A233103

a(n) is the smallest positive integer of length (distance from origin) n in the Cayley graph of the integers generated by all powers of 7. A297180

Equal count of primes congruent to 1 mod 4 and 3 mod 4 associated with primes in A007351 (the zero beginning the sequence indicates the prime 2). A92198

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, 0), (0, 1, 1), (1, 0, -1), (1, 0, 0)}. A150242

Numbers k such that 4·10^k + 63 is prime. A274214

Expansion of 1/((1-2x)(1-3x)(1-4x)(1-5x)). A25211