Properties of the Number 18249

Eighteen Thousand Two Hundred Forty-Nine

Basics

Value: 18248 → 18249 → 18250

Parity: odd

Prime: No

Previous Prime: 18233

Next Prime: 18251

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 11 × 79

Divisors: 1, 3, 7, 11, 21, 33, 77, 79, 231, 237

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100011101001001

Octal: 43511

Duodecimal: A689

Hexadecimal: 4749

Square: 333026001

Square Root: 135.08885964430968

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

Consecutive states of the linear congruential pseudo-random number generator 259·s mod 2¹⁵ when started at s=1. A384194

a(n) = number of k's that make primorial P(n)/A019565(k)+A019565(k) prime, A019565(k)²<=P(n). A103787

Number of composites removed in each step of the Sieve of Eratosthenes for 10⁷. A227155

Numbers which are the product of two S-primes (A057948) in exactly three ways. A343828

Denominator of (1/3)*n*(n + 2)/((1 + 2·n)*(3 + 2·n)). A300295

Number of (4+2) X (n+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 3 5 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 3 5 6 or 7. A252388

Main diagonal of A332365. A332366

Products k of 4 distinct primes (or tetraprimes) such that k has no squarefree neighbors. A364141

The number of polyforms on the snub square tiling where the adjacent triangles are combined into rhombi. A384115

30·a(n) is the gap between sexy prime triples in the n-th sexy prime triple triple whose initial term is 17. A90891