Properties of the Number 18237

Eighteen Thousand Two Hundred Thirty-Seven

Basics

Value: 18236 → 18237 → 18238

Parity: odd

Prime: No

Previous Prime: 18233

Next Prime: 18251

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 6079

Divisors: 1, 3, 6079, 18237

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 100011100111101

Octal: 43475

Duodecimal: A679

Hexadecimal: 473d

Square: 332588169

Square Root: 135.04443713089407

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

Triangle read by rows: T(n,k) is the number of chains in the poset of plane partitions ordered by inclusion that end with a plane partition of n and have length k. A389604

Composite numbers n such that 8·n²-2·n-1 divides the primitive part U(n) of Fibonacci(n). A159234

Number of zero-sum -n..n arrays of 4 elements with adjacent element differences also in -n..n. A202254

Number of binary strings of length n with no substrings equal to 0000, 0101, or 1111. A164437

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 705", based on the 5-celled von Neumann neighborhood. A273419

Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 90. A31588

Numbers that are indices of deficient oblong numbers (A002378). A191969

Weight distribution of hypothetical [ 68,34,12 ] code derived from hypothetical [ 72,36,16 ] doubly-even self-dual code. A18237