Properties of the Number 49521

Forty-Nine Thousand Five Hundred Twenty-One

Basics

Value: 49520 → 49521 → 49522

Parity: odd

Prime: No

Previous Prime: 49499

Next Prime: 49523

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 17 × 971

Divisors: 1, 3, 17, 51, 971, 2913, 16507, 49521

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100000101110001

Octal: 140561

Duodecimal: 247A9

Hexadecimal: c171

Square: 2452329441

Square Root: 222.53314359888057

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 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302965

Coefficients arising in the enumeration of configurations of linear chains. A38746

Numbers k such that k·10^k + 1 is prime. A7647

Number of acute triangles, distinct up to congruence, on a centered hexagonal grid of size n. A241232

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 539", based on the 5-celled von Neumann neighborhood. A272803

Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302961

Number of 5Xn 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302968

Multiplicity of highest weight (or singular) vectors associated with character chi₁₈₇ of Monster module. A34575

Duplicate of A007647. A98980

Starting index of a string of exactly 5 consecutive equal digits in decimal expansion of π. A49521