Properties of the Number 23807

Twenty-Three Thousand Eight Hundred Seven

Basics

Value: 23806 → 23807 → 23808

Parity: odd

Prime: No

Previous Prime: 23801

Next Prime: 23813

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 7 × 19 × 179

Divisors: 1, 7, 19, 133, 179, 1253, 3401, 23807

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101110011111111

Octal: 56377

Duodecimal: 1193B

Hexadecimal: 5cff

Square: 566773249

Square Root: 154.29517166781338

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

Positive numbers of the form x⁵-10x³*y²+5x·y⁴ (where x,y are integers and y>x). A135792

Numbers of the form x⁵-10x³*y²+5x·y⁴ (where x,y are integers). A135793

a(n) = ((7 + sqrt(2))ⁿ + (7 - sqrt(2))ⁿ)/2. A147958

Positive numbers k such that k and k + 1 are both positive negaFibonacci-Niven numbers (A331085) and -k and -(k + 1) are both negative negaFibonacci-Niven numbers (A331088). A331092

Expansion of e.g.f. log(arctan(x) + exp(x)). A12972

a(n) = floor( sqrt(2) * (3/2)ⁿ ). A33320

Number of 3-element proper antichains (i.e., antichains such that every two members have nonempty intersection) on an unlabeled n-element set. A56782

Number of n X 2 0..2 arrays with horizontal differences mod 3 never 1, vertical differences mod 3 never -1, and rows and columns lexicographically nondecreasing. A229439

Smallest k such that A257743(k)=n. A257744

Numbers k such that 61·2^k-1 is prime. A50556