Properties of the Number 12491

Twelve Thousand Four Hundred Ninety-One

Basics

Value: 12490 → 12491 → 12492

Parity: odd

Prime: Yes

Previous Prime: 12487

Next Prime: 12497

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 12491

Divisors: 1, 12491

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000011001011

Octal: 30313

Duodecimal: 728B

Hexadecimal: 30cb

Square: 156025081

Square Root: 111.76314240392492

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

Mountain primes. A134951

a(0) = 0, a(1) = 1, a(n+1) = (2·n+1)*(n²+n+25)*a(n) - n⁶*a(n-1). A143005

Primes p such that p = q² + 2·r² where q and r are also primes. A260553

Primes p such that primorial(p)/2 - 2 is prime. A96547

Numerators of Blandin-Diaz compositional Bernoulli numbers (B^Z)_1,n. A132096

Primes associated with the indices in A133589. A133590

a(n) = ∑_i=0..n digsum₆(i)³, where digsum₆(i) = A053827(i). A231674

Primes p such that π(p) is obtained by dropping one of the digits of p in decimal expansion. A114924

Primes for which the weight as defined in A117078 is 11 and the gap as defined in A001223 is 6. A119597

Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 310", based on the 5-celled von Neumann neighborhood. A281037