Properties of the Number 2269

Two Thousand Two Hundred Sixty-Nine

Basics

Value: 2268 → 2269 → 2270

Parity: odd

Prime: Yes

Previous Prime: 2267

Next Prime: 2273

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2269

Divisors: 1, 2269

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011011101

Octal: 4335

Duodecimal: 1391

Hexadecimal: 8dd

Square: 5148361

Square Root: 47.634021455258214

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: Yes

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Hex (or centered hexagonal) numbers: 3·n*(n+1)+1 (crystal ball sequence for hexagonal lattice). A3215

Primes of the form 2x² + 13y². A107132

Number of nodes of even outdegree (including leaves) in all ordered trees with n edges. A26641

Primes of the form x² + 45y². A107152

Cuban primes: primes which are the difference of two consecutive cubes. A2407

Triangle T(n,k), 0 <= k <= n, read by rows defined by: T(0,0)=1, T(n,k)=0 if k < 0 or if k > n, T(n,0) = 4·T(n-1,0) + T(n-1,1), T(n,k) = T(n-1,k-1) + 5·T(n-1,k) + T(n-1,k+1) for k >= 1. A126331

Number of strict integer partitions of n whose length (number of parts) can be written as a nonnegative linear combination of the parts. A367220

Class 4+ primes (for definition see A005105). A5108

Largest prime factor of 3ⁿ + 1. A74476

Primes p such that p + 4 is prime and p == 9 (mod 10). A74822