Properties of the Number 21367

Twenty-One Thousand Three Hundred Sixty-Seven

Basics

Value: 21366 → 21367 → 21368

Parity: odd

Prime: No

Previous Prime: 21347

Next Prime: 21377

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 23 × 929

Divisors: 1, 23, 929, 21367

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101001101110111

Octal: 51567

Duodecimal: 10447

Hexadecimal: 5377

Square: 456548689

Square Root: 146.17455318898703

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 partitions of n where the difference between consecutive parts is at most 2. A224956

T(n,k)=Number of nXk 0..1 arrays with every element equal to 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. A299602

Number of double palindrome structures of length n using exactly two different symbols. A328688

p-INVERT of (1,2,2,2,2,2,2,...) (A040000), where p(S) = (1 - S)². A292400

Number of 0's in the binary expansion of A127962(n). A127964

First differences of A132581. A132582

Number of lower triangles of a 4 X 4 0..n array with each element differing from all of its diagonal, vertical, antidiagonal and horizontal neighbors by one or less. A195234

Number of n X 5 0..1 arrays with every element equal to 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. A299599

Number of 2-factors in D₄ X P_n. A3758

Number of n X n 0..1 arrays with every element equal to 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. A299596