Properties of the Number 21329

Twenty-One Thousand Three Hundred Twenty-Nine

Basics

Value: 21328 → 21329 → 21330

Parity: odd

Prime: No

Previous Prime: 21323

Next Prime: 21341

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 7 × 11 × 277

Divisors: 1, 7, 11, 77, 277, 1939, 3047, 21329

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 101001101010001

Octal: 51521

Duodecimal: 10415

Hexadecimal: 5351

Square: 454926241

Square Root: 146.04451376207186

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

Numbers that are the sum of four fourth powers in exactly two ways. A344193

Numbers of the form HMMSS with primes H < 24 and MM, SS < 60, for which the number of seconds after midnight, 3600·H+60·MM+SS, is also prime. A295011

Triangle read by rows: T(n,k) is the number of nested cycle partitions of n labeled nodes into k components. A392471

Partial sums of floor(n³/3). A173707

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 0), (0, 1, -1), (1, 0, -1), (1, 1, 1)}. A149686

Decimal expansion of 1/325. A21329