Properties of the Number 12591

Twelve Thousand Five Hundred Ninety-One

Basics

Value: 12590 → 12591 → 12592

Parity: odd

Prime: No

Previous Prime: 12589

Next Prime: 12601

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 1399

Divisors: 1, 3, 9, 1399, 4197, 12591

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000100101111

Octal: 30457

Duodecimal: 7353

Hexadecimal: 312f

Square: 158533281

Square Root: 112.20962525559027

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 unlabeled strongly connected digraphs with n arcs. A350752

Numbers n such that n and n+2 are of the form p²*q where p and q are distinct primes. A74173

Number of partitions of n into deficient numbers. A97797

Number of integer partitions of n with fewer distinct parts than distinct divisors of parts. A371132

Potential magic constants of 7 X 7 magic squares composed of consecutive primes. A188536

Starts of runs of 3 consecutive numbers that have an equal number of even and odd exponents in their prime factorization (A187039). A348077

Number of partitions of the n-th deficient number into deficient numbers. A97799

a(n) = 729·n - 531. A156771

Number of (w,x,y,z) with all terms in {1,...,n} and 2∣w-x|<n+|y-z|. A212687

a(n) is the number of regions formed by n-secting the angles of a decagon. A335800