Properties of the Number 2309

Two Thousand Three Hundred Nine

Basics

Value: 2308 → 2309 → 2310

Parity: odd

Prime: Yes

Previous Prime: 2297

Next Prime: 2311

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2309

Divisors: 1, 2309

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100100000101

Octal: 4405

Duodecimal: 1405

Hexadecimal: 905

Square: 5331481

Square Root: 48.05205510693585

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 of the form 2x² + 2xy + 17y². A139827

The Matula-Goebel numbers of the generalized Bethe trees. A generalized Bethe tree is a rooted tree in which vertices at the same level have the same degree. A214577

Number of strings over a 5 symbol alphabet with adjacent symbols differing by three or less. A126473

Coordination sequence for 3D uniform tiling formed by stacking parallel layers of the 4.6.12 2D tiling (cf. A072154). A299258

Kummer numbers: -1 + product of first n consecutive primes. A57588

Primes p such that p² + p + 1 is prime. A53182

Smallest prime > n². A7491

The slowest increasing sequence of primes such that difference of successive terms is unique. A84758

Triangle read by rows: T(n,k) (n>=1; 1<=k<=n) is the number of permutations of [n] in which the longest increasing run has length k. A8304

Primes from merging of 4 successive digits in decimal expansion of sqrt(2). A198164