Properties of the Number 13281

Thirteen Thousand Two Hundred Eighty-One

Basics

Value: 13280 → 13281 → 13282

Parity: odd

Prime: No

Previous Prime: 13267

Next Prime: 13291

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 19 × 233

Divisors: 1, 3, 19, 57, 233, 699, 4427, 13281

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11001111100001

Octal: 31741

Duodecimal: 7829

Hexadecimal: 33e1

Square: 176384961

Square Root: 115.2432210587677

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

Dispersion of A016861, (5k+1), by antidiagonals. A191703

Sum of the smallest parts of the partitions of 4n into 4 parts with smallest part greater than 1. A238706

Odd composite integers m such that A006497(m) == 3 (mod m). A335669

a(n) = 8·n² - 4·n - 3. A118057

Number of n-cell fixed tree-like polycubes in 6 dimensions. A191096

Odd composite integers m such that A087130(m) == 5 (mod m). A335671

Odd composite integers m such that U(m)² == 1 (mod m) and V(m) == 3 (mod m), where U(m) and V(m) are the m-th generalized Lucas and Pell-Lucas numbers of parameters a=3 and b=-1, respectively. A337626

Odd composite integers m such that U(m)² == 1 (mod m) and V(m) == 5 (mod m), where U(m) and V(m) are the m-th generalized Lucas and Pell-Lucas numbers of parameters a=5 and b=-1, respectively. A337628

Numbers k whose ordered binary weights (A000120) of their divisors are the numbers 1 to A000005(k). A354724

Numbers n such that A048767(n+1)=A048767(n). A48769