Properties of the Number 21333

Twenty-One Thousand Three Hundred Thirty-Three

Basics

Value: 21332 → 21333 → 21334

Parity: odd

Prime: No

Previous Prime: 21323

Next Prime: 21341

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 13 × 547

Divisors: 1, 3, 13, 39, 547, 1641, 7111, 21333

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 101001101010101

Octal: 51525

Duodecimal: 10419

Hexadecimal: 5355

Square: 455096889

Square Root: 146.0582075749254

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 ways to tile an n X n X n triangular area with two 2 X 2 X 2 triangular tiles and an appropriate number (= n²-8) of 1 X 1 X 1 tiles. A286437

Numbers that are the sum of eight fourth powers in nine or more ways. A345584

Expansion of ∏_k>=1 ((1+x^3·k-1)*(1+x^3·k-2))^k. A262884

Numbers that are the sum of eight fourth powers in ten or more ways. A345585

Numbers that are the sum of eight fourth powers in exactly ten ways. A345842

Number of compositions of n whose standard factorization into Lyndon words has all weakly increasing factors. A299026

Nonnegative k such that 3·k + 1 is a perfect cube. A121628

Number of partitions of n into parts with at most one part <= 2. A121659

a(n) = floor(n³/3). A131476

a(n) = A008893(n)/2. A152041