Properties of the Number -21326

Twenty-One Thousand Three Hundred Twenty-Six

Basics

Value: -21327 → -21326 → -21325

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 10663

Divisors: 1, 2, 10663, 21326

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101001101001110

Octal: -51516

Duodecimal: -10412

Hexadecimal: -534e

Square: 454798276

Square Root: 146.03424255975034

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

a(n) = minimal positive k such that the concatenation of the decimal digits of n,n+1,...,n+k is divisible by n+k+1, or -1 if no such k exists. A332580

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with nondecreasing max(x(i,j),x(i,j-1)) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction. A250536

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime. A251950

Replace n with concatenation of its divisors >1. A37277

Anagraprod Integers. Integers N that reproduce their multiset of digits when all the products of two successive digits of N are done (and considered together). A296451

CONTINUANT transform of A002487: 1, 1, 2, 1, 3, 2, ... A71898

Number of isolated-pentagon fullerenes with 2n vertices (or carbon atoms). A86423

a(n) = ∑_k=1..n k·k', where n' is the arithmetic derivative of n. A190117

Number of (n+1)X(1+1) 0..3 arrays with nondecreasing max(x(i,j),x(i,j-1)) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction. A250529

Number of (n+1) X (4+1) 0..3 arrays with nondecreasing max(x(i,j),x(i,j-1)) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction. A250532