Properties of the Number 18269

Eighteen Thousand Two Hundred Sixty-Nine

Basics

Value: 18268 → 18269 → 18270

Parity: odd

Prime: Yes

Previous Prime: 18257

Next Prime: 18287

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 18269

Divisors: 1, 18269

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011101011101

Octal: 43535

Duodecimal: A6A5

Hexadecimal: 475d

Square: 333756361

Square Root: 135.1628647225265

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 n³ + n² + 17, for nonnegative values of n. A50266

Primes p = prime(i) of level (1,3), i.e., such that A118534(i) = prime(i-3). A118467

Frobenius number of the numerical semigroup generated by 3 consecutive triangular numbers. A69755

a(1) = 2; a(n) is smallest prime > 3·a(n-1). A76656

Prime number spiral (clockwise, East spoke). A54555

Primes p of the form prime(n+1)³-prime(n)³+1. A176136

Primes q = 4·p+1, where p == 2 (mod 5) is also prime. A221981

Primes p such that both (p² + 5)/6 and (p⁴ + 5)/6 are prime. A253925

Primes p such that continued fraction of (1 + sqrt(p))/2 has period 7: primes in A146332. A146352

Array: each row starts with the least prime not in a previous row, and each prime p in a row is followed by the least prime > 3·p. A229610