Properties of the Number 11491

Eleven Thousand Four Hundred Ninety-One

Basics

Value: 11490 → 11491 → 11492

Parity: odd

Prime: Yes

Previous Prime: 11489

Next Prime: 11497

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 11491

Divisors: 1, 11491

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110011100011

Octal: 26343

Duodecimal: 6797

Hexadecimal: 2ce3

Square: 132043081

Square Root: 107.19608201795437

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

Primes having only {1, 4, 9} as digits. A260271

Smallest prime that is obtained by placing digits on both sides of the n-th prime. Or smallest prime that encompasses the n-th prime. A75595

Where the prime race among 11k+1, ..., 11k+10 changes leader. A297410

Expansion of g.f. -2·x/(1 - 5·x - sqrt(1-4·x) + x·sqrt(1-4·x) + 2·x²). A78483

Primes p of Erdos-Selfridge class 3+ with largest prime factor of p+1 not of class 2+. A129471

Primes p == 3 (mod 4) such that the multiplicative order of 2+-i modulo p in Gaussian integers (A385165) is not divisible by 2 or 3. A385188

Primes of the form |2ⁱ - 3^j|, for i >= 0, j >= 0. A363998

Expansion of 1/( (1-x) * (1-x-9·x³)² )^1/3. A383606

Primes of the form 30·p + 1 where p is also prime. A51646

The smallest prime p that makes the pair p+/-6n both primes while no other pair of p+/-6k+6·n, 0<k<n both primes. A139602