Properties of the Number 13531

Thirteen Thousand Five Hundred Thirty-One

Basics

Value: 13530 → 13531 → 13532

Parity: odd

Prime: No

Previous Prime: 13523

Next Prime: 13537

Digit Sum: 13

Digital Root: 4

Palindrome: Yes

Factorization: 7 × 1933

Divisors: 1, 7, 1933, 13531

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11010011011011

Octal: 32333

Duodecimal: 79B7

Hexadecimal: 34db

Square: 183087961

Square Root: 116.32282665066217

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+2) = a(n+1) + a(n) + (-1)ⁿ, with a(1) = a(2) = 1. A66983

a(n) = 8·n² + 2·n + 1. A188135

Palindromic and divisible by 7. A45642

Sum of the first n primes whose indices are primes. A83186

Number of compositions (ordered partitions) of n into distinct squarefree parts. A331846

a(n) = a(n-1) + a(n-2) - 1. A1588

Third row of Pascal-(1,4,1) array A081579. A81587

Positive integers of the form (10·m²+1)/11. A179338

Ulam numbers such that 2·n is also an Ulam number. A68791

Palindromic lucky numbers. A31161